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requir

requir

requir

requir

1

Viz. that what might be a little to be done with help and tools , was a vast labour , and requir'd a prodigious time to do alone, and by hand.

同时也可以说明，做任何工作，如果有助手和工具，本来是一件轻而易举的事情，但若单凭一个人空手去做，便要花费大量的劳力和时间。

2

This paper puts forward a rolling and forging combined process of the crank of gasoline engine , which proceeds from productive requir. . .

探讨了组合式楔横轧模具的设计方法，使汽油机曲柄的轧、锻联合成形工艺更具实用价值。

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