Problems were introduced in the use of pressured proportional foam mixer. The notice of its design and type selection was discussed also. Its advantages were described in fire control.
介绍了压力比例泡沫混合装置使用中出现的问题和设计、使用选型应注意的事宜，消防中使用该装置的优越性。
The reference opinion for the selection principle of the proportional valve has been put forward.
对比例阀的选用原则提出了参考意见。
Yuken brings cutting edge electro-hydraulic control technology to you through their extensive proportional valve selection.
油研带来贯穿其广泛的比例阀的选择边缘的电液控制技术给您。
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