During this travel the various cores are set, and the molds closed, moving to the point where the men with large ladles pour the mold. 佚名.神奇的知识之书.
Hanging over the top of the board are several cores on which the resistance wire has been wound, showing the V-shaped heating element. 佚名.神奇的知识之书.
SHOWING A BOX OF IMPORTED MICA Above on the table, a stack of cores and several elements ready for insertion in the iron. 佚名.神奇的知识之书.
At the edge of the table is a stack of mica strips known as cores. 佚名.神奇的知识之书.
These cores were then allowed to run in an excited field, and after a given time their temperature was measured and noted. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
In the field magnets of his dynamo he constructed the cores and yoke of forged iron having a very large cross-section, which was a new thing in those days. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
By such practical methods Edison found that the thin, laminated cores of sheet iron gave the least heat, and had the least amount of wasteful eddy currents. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
In casting cylinders, on account of their size and the care needed in setting the cores, a different style conveyor is used. 佚名.神奇的知识之书.
Cores were made of cast iron, others of forged iron; and still others of sheets of iron of various thicknesses separated from each other by paper or paint. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
Edison had a number of small wooden cores made, at both ends of which we inserted little brass nails, and we wound the wooden cores with twine as if it were wire on an armature. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
These have hanging upon them large sets of shelves, upon which the cores are placed for baking. 佚名.神奇的知识之书.