小心地把两个取样瓶以溪水完全装满。

Carefully fill two sampling bottles completely with stream water.

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小心地把两个取样瓶以溪水完全装满。以溶氧量计测量水中的溶解氧量。

Carefully fill two sampling bottles completely with stream water. Use the dissolved oxygen meter to measure dissolved oxygen in the water.

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液压流体动力。流体。从运行系统的管道中采用瓶取样的方法。

Hydraulic fluid power. Fluids. Methods for bottle sampling from lines of an operating system.

youdao

液压流体动力。流体。从运行系统的管道中采用瓶取样的方法。

Hydraulic fluid power. Fluids. Methods for bottle sampling from lines of an operating system.

youdao