It requested the extension of this phase-out period by another five years due to the importance of cashmere to its economy.

鉴于山羊绒对蒙古经济的重要性，蒙古请求将豁免时限再延长5年。

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This single period layered phase grating, which has been tried out successfully for the first time by our institute, provides a kind of new element for the precision measurements.

由本院精密计量室初试成功的单周期层状位相光栅，为精密测试提供了一种新元件。

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Phase-shifted full-bridge PWM converters work in discontinuous current mode (DCM), when the current of out-put filter inductor is discontinuous in one switching period.

当输出滤波电感的电流在一个周期内不连续时，移相全桥PWM变换器就工作在电流断续模式（DCM）。

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Industrial countries certainly could do more to lower their trade barriers, but they have generally followed the schedule of reforms negotiated in the Uruguay Round (which admittedly phase out most textile quotas only at the end of a ten-year transition period).

ECONOMIST: By Invitation