从你刚才所谈到的情况我知道，工厂建筑就是设计和建造通常数百米长的单层大跨度建筑物。

From what you said I know that factory construction means the design and construction of single-storey buildings of large span often hundreds of meters long.

youdao

它采用不同的交流耦合时间常数，对规则的突发数据包中的前导码用小时间常数，对数据包中有长连“1”和长连“0”的数据用大的时间常数。

The small time constant is applied to the normal burst mode packet and the large time constant is applied to packets with a succession of "1" or "0".

youdao

研究一类局部对称Riemann流形的紧致超曲面，得到了使浸入超曲面的第二基本形式模长的平方为常数的几个充分条件。

Some sufficient conditions arc obtained, under which the Square length of the second fundamental form of the immerse hypcrsurfaces is a constant.

youdao

take the derivative of this, get the velocity vector and you notice his magnitude is a constant Whichever way you do it, you can then rewrite this as v square over r.

对这个式子求一次导,就能得到速度矢量,你会发现其模长是常数,不管用什么方法,加速度也可以写成 v^2 / r

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