Using this method can not only be convenient to measurement of roving stretchrate, but also shorten the testing spinning cycle of the roving.
用这种方法不仅能使粗纱伸长率的测量变得十分方便，而且还可使粗纱的试纺周期大大缩短。
2
At that rate, a one-mile stretch of four-lane highway could power about 500 homes.
以这样的速率，一段1英里4车道的公路段将可以为500个左右的家庭供电。
3
Valuing these liabilities is tricky because they stretch many years into the future and their current worth swings wildly in response to small changes in the “discount rate” used to value it.