旅游背包怎么选购？英文双语对照

怎样选择一个适合自己使用的背包呢？可从以下五个方面考虑：

A.根据装载物品的数量选择背包的容积如果出行时间较短，且不准备在户外宿营，携带物品不多，宜选中小容积的背包，一般说明书25升至45升就够了。这种背包一般结构比较简单，不设外挂或较少设外挂，除一个主袋外，通常设3-5个附袋，便于分类装载物品，若出行时间较长，或需携带露营装备，则要选一个大包，以50升~70升为宜。若需装载物品奇多或体积较大，可选80+20升的大背包，或外挂较多的背包。

B.根据背包的用途选择背包的类型同是登山包，其用途却不尽相同。如专门为攀岩活动设计的攀岩包，一般不设计硬支撑，为的是便于随身而曲，外挂点比较多，以利于掇挂器材，有的款式还专门装配了整理器材的垫布。而为骑行设计的自行车系列包，更多地注重了骑行特点，具体可分为背行包、驮袋等。一般意义的登山包，亦可称为野营背包，设计考虑了各种运动形式的特点和长途行军的需要，适用于登山、探险险和林地穿越活动。还有专门为长途旅行设计的背包，称其为多用包或子母包，其分体结构形式基本与登山包类同，可双肩背，上下分层，又类似于旅行箱，揭盖式开口，可单肩背，亦可横、竖提行，大小包装有连体结构，可分可合使用方便，很受出差者欢迎。总之，各类背包都有其独特的适用范围，购包最佳选择是专包专用。

C.根据身体选用背负系统的尺码背包的背负系统都有特定的适用范围，可调式背包虽适用范围较大，也不是无极限的，所以，选背包选好背负系统的尺码非常重要。什么样的尺码为合宜呢？一般说背包的腰部受力点应在尾骨上方的腰窝上，肩带的支点应大体与肩平略低于肩部，这样才便于受力带的调整和受力，背起来才舒服。而背部尺码过大会产生下坠感，反之则会有上纵感，使腰部受力不到位。合适的尺码调整好后，背包会自然贴在背上，很舒服。

D.不可忽视材料的质量许多人在选择背包时，往往比较注意背包的颜色和外形，其实背包能否结实耐用关键在于制造材料。从织带上看，普通的织带和优质织带价格可差3~5倍，BIG PACK选用的织带承重力达到200公斤以上。从而料上看差别也很大，同为42D的面料，普通面料每码280克，而高密度的面料每码重410克，因此两种面料从强度和耐磨度上都有很大差异在磨擦机上对面料进行破坏性试验，同为500D面料，普通尼龙布1075转时破损，而杜邦尼龙布却在3605转时才破损，其耐磨度为普通尼龙的3倍。从涂层上看，低档背包多用PVC涂层，其受冷会变硬，而高档背包多用PU涂层面料，其遇冷硬度没有明显变化，四次PU涂层的面料防水度可达1500mm以上。目前市场的名牌背在用料上都比较考究，性能质量也都比较好。

E.良好的结构和设计是背包性能优越的保证。登山包具有良好的性能，重要的因素在于它设计结构科学合理。良好的设计不仅给你整体的美，更重要的可以使你在使用中得到卓越性能的享受，我们从BIG PACK TOP毓背包的设计结构上更可以直观地看到这一点。其背负系统的结构吸收尼泊尔背篓的原理，采用了双“V”型设计。一是内衬铝架呈“V”字型，设一横杆在肩部定位，并根据人体曲线对铝架作定型处理，使用者还可根据个人体形微调；二是背包装载部分呈“V”字型，上宽下窄，上厚下薄，装物后呈篓型，这样的结构更便于受力传递。TOP系列背负采用了ETA-3调整装置，调整部设有3个孔，装置中装有一个结构衬垫调整孔眼的位置，可以改变背负的尺码。而改变结构衬垫的位置，可以使背包的重心上下移动。TOP系列背包还设计了增大容积的装置，竖向增容型顶包下设一条拉链，放开拉链可使背包增容10升左右，横调型背包在主袋上装有两条竖开拉链，放开后可以使背包变粗从而扩大容积，特别适用于装体积较大物品。使用者可以根据需要自调其高、其阔，有了这样的背包，定为您的出行啬不少便利。背包的使用至于背包的使用，在您了解了登山包的结构原理之后，其使用方法尽在不言之中。在此，我们将派格公司携带重物的高明之策一段文字推荐给读者，供背包族参考。

——我们建议，在处于有利地形时，应将背包的重心移到上部；而处于较为不利地形时，应将背包重心移到中部。一般装载物品的顺序自上而下为：给养、饮料、较重设备、较轻装备、睡袋及衣物，背行者在使用中尽可体味。

How does the choice suit the blanket roll that he uses? But from the following 5 respects regard:

A. If the cubage that chooses blanket roll according to the amount that stowage tastes gives a time shorter, and do not prepare outdoors cantonment, carry article not much, the knapsack of minor volume of appropriate pitch on, general manual reachs 45 litres 25 litres enough. This kind of blanket roll is common the structure is simpler, outside outside be not being set, be hanged or be being set lesser, hang, divide advocate outside bag, set 3-5 normally add bag, facilitating classification stowage is tasted, if give a time longer, or need to carry camp equipment, want to pick a big package, it is advisable to rise with 50 litres of ~70. If need to lade,article surprises much or volume is larger, the old blanket roll that optional 80+20 rises, or outside hang more knapsack.

B. The kind that selects knapsack according to the utility of knapsack is mountain-climbing bag together, its use is endless however and same. If be the Pan Yan that the activity that climb rock designs technically to wrap, do not design commonly hard prop up, for the sake of facilitating and music, the drop is registered outside more, hang equipment at pick up with benefit, some design assembled the mat cloth that trims material technically still. And the bicycle series package that designs all right to ride, paid attention to morely ride a characteristic, specific can divide the luggage that it is a back, carry on the back bag. The mountain-climbing of common sense is wrapped, yi Ke calls bivouac knapsack, the design considered the need of the characteristic of all sorts of motion forms and long-distance march, apply to mountain-climbing, expeditionary danger and forest land to pass through activity. Still have the blanket roll that designs technically for long-distance journey, call its multi-purpose bag or child mother bag, its fission configuration is wrapped basically with mountain-climbing kind with, but double shoulder back, fluctuation is statified, be similar to viatic box again, the type that lift a lid starts to talk, but thin shoulder back, yi Ke horizontal stroke, perpendicular begin a new line, big Xiaobao contains the structure that join system, can divide can close use convenient, very get reception of the person that be away on official business. Anyhow, of all kinds knapsack has its distinctive suitable scope, buying packet of optimal option is to be wrapped only special.

C. Choose those who bear measures knapsack of the system to bear a system to have specific suitable scope according to the body, but although suitable scope is bigger,move type knapsack, also do not have the limit, so, it is very important to choose knapsack to had chosen the measures that bears a system. What kind of measures is convenient? The waist that says knapsack commonly suffers force dot to should be on the lumbar nest of coccygeal upper part, the fulcrum of aglet should be made the same score roughly with the shoulder slightly under humeral ministry, such ability facilitate the adjustment of belt getting power is mixed get power, the back rises ability is comfortable. And back measures crosses congress to produce straining to feel, can have conversely even if feel,go up, make the waist suffers force not to reach the designated position. After proper size has been adjusted, knapsack can be stuck naturally on the back, very comfortable.

D. A lot of people are choosing the quality that cannot ignore material when knapsack, often notice the color of knapsack and appearance quite, actually knapsack whether strong and durable key depends on making material. From knit look on the belt, knit commonly take and high grade knit take the price to be able to differ 3~5 times, BIG PACK chooses knit belt bear gravity achieves 200 kilograms of above. The difference sees on makings thereby very big also, it is the fabrics of 42D together, common fabrics every 280 grams, and the fabrics of high density weighs 410 grams every, because these two kinds of fabrics are spent from intensity and wear-resisting,go up to have very big difference grinding the makings opposite side has ruinous test on machine, it is 500D fabrics together, common nylon cloth the 1075 damaged when turning, and cloth of Du Bangni dragon is in however damaged of the 3605 ability when turning, its wear-resisting spends 3 times what be common nylon. Look from coating, cheap knapsack is multi-purpose PVC coating, its suffer cold meeting to harden, and high-grade knapsack is multi-purpose PU coating fabrics, its encounter cold hardness to do not have apparent change, the fabrics of 4 PU coating is waterproof degree can amount to 1500mm above. At present the famous brand back of the market is being used fastidious is compared on makings, performance quality is better also.

E. Good structure and design are the assurance with knapsack superior performance. Mountaineer the bag has good performance, main factor is designing structural science at it reasonable. Good design gives you integral beauty not only, the more important enjoyment that can make your in use obtains outstanding property, we see this OKer and intuitionisticly from the design construction of knapsack of to bring up of BIG PACK TOP. Its bear systematic structure to absorb the principle of Nepalese a basket carried on the back, used double " V " model design. It is liner aluminium wearing is shown " V " word, set one rail to locate in humeral ministry, wear to aluminium according to human body curve finalize the design processing, the person that use is returned but according to fine tuning of individual bodily form; 2 it is knapsack outfit carry a part to show " V " word, go up wide below narrow, go up thick below thin, basket is shown after holding thing model, such structure more facilitate suffer force to deliver. TOP series is borne used ETA-3 adjusting gear, adjust a ministry to set 3 aperture, of a structure gasket adjusts the position of eyelet in device, can change the size that bear. And the position that changes structural gasket, can make the centre of gravity of knapsack moves up and down. TOP series knapsack still designed the plant that increases volume, bag of perpendicular Xiang Zengrong top sets a slide fastener, unlock slide fastener to be able to make knapsack adds a look 10 litres or so, unexpected mix knapsack is in advocate slide fastener stands of two on bag, after unlocking, can make knapsack coarsens to enlarge cubage thereby, special apply to outfit bulk bigger article. The person that use is OK the basis needs self-regulated its its are tall, broad, had such blanket roll, give a miserly to facilitate not less for yours surely. The use of knapsack the use as to knapsack, after the structural principle that understood mountain-climbing bag in you, its use a method to all be in not in character. Here, a paragraph of character recommends the brillant plan that we carry the company that send case the clog reader, offer reference of knapsack a group of things with common features.

-- we suggest, when be in advantageous landform, should move the centre of gravity of knapsack upside; And when be in relatively adverse landform, should move knapsack centre of gravity mid. The ordinal from above to below that general stowage tastes is: Provisions, beverage, heavier equipment, lighter equipment, sleeping bag reachs clothings, the person that the back goes in use appreciate.