non-return
美 
英
- adj.止回的；单向的
- n.不返回的；逆流防止阀
- 网络非回流；不退回的
英汉解释
例句
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。
This table can also be made to send non-return of the source of signal transmission path.
此表也有作向发送者返回非传递信号的源路径。
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
Water pumps at the end of the relevant type of valve is also a non-return valve.
水泵吸水关的底阀也属于止回阀类。
The first question on every Android fan's mind is likely, "Well, what about Apple's App Store non-return policy? "
相信每个安卓粉丝脑海中第一个问题应该是“好吧，那苹果应用商店的不退款政策会怎么样呢？”
I have stepped onto a non-return road in love, but, with the rose you sent to accompany me on my road, why should I worry about loneliness?
在感情上我已是踏上了一条不归之路，可日后路上有你送的花香伴随，何愁寂寞呢？
In addition to this, install a non-return value in the oil supply line.
此外，在供油管中要安装一个止回阀。
Fixed firefighting systems - Components for gas extinguishing systems - Requirements and test methods for check valves and non-return valves
固定消防系统.气体灭火系统件.阀门和非回阀门检验的试验方法和要求
The heated oil-injected compressed air, presses through the non-return valve in to the oil separator
把热的压缩空气，从单向阀压缩至油品分离器中
Canted disc butterfly valve Link butterfly valve Combined non-return butterfly valve
斜阀盘蝶阀连杆式蝶阀止回式蝶阀
Verification of the withdrawal from Cambodia and non-return of all categories of foreign forces;
核查各种类型的外国武装力量撤出柬埔寨并不得重返；
Application of Non-return Grout Injection Nozzle in Chemical Grouting of Concrete Crack
混凝土裂缝化学灌浆逆止注浆嘴的应用
Steadiness of Non-return Valve against Additional Disturbance
外干扰下扑板式止逆阀的稳定性
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 Research on Keeping Pressure Expiration in Hydraulic Control Non-return Valve
液控单向阀保压失效问题的研究
Non-return to the universally condemned policies and practices of recent past;
不得恢复不久以前实行的遭到普遍谴责的政策和做法；
Key Component to Quality Control of Injection Molding Product--Non-return Valve
影响注射成型制品质量的重要部件--止逆环
PLC Used in Control System of Hydraulic Non-Return Butterfly Valve
PLC在液压止回蝶阀控制系统中的应用
Flanged suction strainers without non-return valve
无止回阀。带法兰的吸滤器
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 Valves for Special Applications
特殊用途的单向阀
retaining valve(non-return valve, check valve)
止回阀（逆止阀，单向阀）
Study on the Diameters of Piston and Valve Ball of Non-return Valve
单向阀阀球与活塞直径设计尺寸的研究
x One pump inlet filter with non-return device override
一个带有止回装置的泵入口过滤器
x One return filter with non-return device override
一个附带止回装置的返回滤波器
The design of milling clamps for non-return valves
单向阀专用铣夹具的设计
STOP CHECK VALVE (BOILER NON-RETURN VALVE)
截止止回阀（锅炉止回阀）
Non-return to the policies and practices of the past;
不回到过去的政策和作法；
Technical specifications for valves for shipboard use - Part 5: Cutt off type non return valves
造船用管件的交货技术条件.第5部分：截止止回阀
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
Stop check valve ; non-return valve
切断式止回阀|
