She exerts herself very much for Africa, sir, I said. 查尔斯·狄更斯.荒凉山庄.
The hand exerts a small force over a long distance and draws out a nail. 伯莎M.克拉克.科学通论.
While most of us are familiar with the bursting of water pipes on a cold night, few of us realize the influence which freezing water exerts on the character of the land around us. 伯莎M.克拉克.科学通论.
The fish is entirely surrounded by water which exerts an equal pressure on all sides. 佚名.神奇的知识之书.
When air is compressed, its pressure increases, and it exerts a greater force against the matter with which it comes in contact. 伯莎M.克拉克.科学通论.
The WILL exerts itself, when either the good or the absence of the evil may be attained by any action of the mind or body. 戴维·休谟.人性论.
At a light-red heat, iron becomes non-magnetic, so that a strong magnet exerts no influence over it. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
As it expands and occupies more space, its pressure falls and it exerts less force against the matter with which it comes in contact. 伯莎M.克拉克.科学通论.
Let the lever, any strong metal bar, be supported on a stone which serves as fulcrum; then if a man exerts his force at the end of the rod somewhat as in Figure 91 (p. 伯莎M.克拉克.科学通论.
Water 1 foot deep exerts a pressure of 62. 伯莎M.克拉克.科学通论.
Air under ordinary atmospheric conditions exerts a pressure of 15 pounds to the square inch. 伯莎M.克拉克.科学通论.
If, for example, 1 cubic foot of air is allowed to expand and occupy 2 cubic feet of space, the pressure which it exerts is reduced one half. 伯莎M.克拉克.科学通论.