non-returnable的例句大全

Including the structure of the non-return valve.

包括各种结构的止回阀.

Application of Rubber Non-return System on Overflow Gates

橡皮止水润滑系统在溢流闸门上的应用

non-return to the policies and practices of the past;

不回到过去的政策和作法；

In the flow out system, the flow lines between tank and filling hose are installed in straight line and are equipped with a non-return foot valve at the end to the tank.

出油系统中，油罐与加油机之间的出油管呈直线布置，出油管在罐内的末端须加单向底阀。

too little retract to cause the non-return valve closing unstably

回吸太小造成止回阀关闭不稳定

place the pump above water level to protect water from flowing backwards, otherwise it should be fit with a non-return valve.

使用过程中，该机应高于水位，或加止流阀，以防水倒流。

first: to act as an automatic non-return valve by preventing a backflow of steam from the main steam header to the boiler.

首先，能过作为一个自动逆止阀，防止蒸汽从主蒸汽加热器上倒流到锅炉里。

non-return part of the quality of reasons: to pay suppliers procurement costs arising from the loss.

非质量原因退货部分：偿付供货方采购所产生的费用损失。

stop check valve ; non-return valve

切断式止回阀|

setting of non-return valve in the fire fighting and water supply system

消防给水系统止回阀的设置

the invention relates to a valve, in particular to a non-return pressure-reducing valve.

本发明涉及一种阀，特别是一种止回减压阀。

artificial insemination of animals. method of calculation of the non-return rate for bulls.

动物人工授精.牛的不受孕率的计算方法