因此，本设计采用双通光栅单色仪加直接驱动直接读取光栅角位置控制的实现方案。

So, this project adopts the realization scheme of double-pass raster monochromator plus direct drive and direct reading of the raster's angle position to control.

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本实用新型是一种单动双通平衡阀，由阀体、阀塞、阀杆、压盖、补偿垫圈等组成。

The utility model relates to a single-action two-way equalizing valve, comprising a valve body, a valve plug, a valve rod, a pressing cover, a compensating cushion ring, etc.

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戴着双通无线电的她，问题刚一出现，就要去解决了：第一个问题很简单，女生厕所没有卷纸，另一个问题就有点麻烦，楼上有人在吵架。

Ms Dozier wears a two-way radio to deal with problems the minute they arise. One is small: the girls' toilets have no paper towels.

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