Standard coupling to buy convenience, price non-standard couplings designed to be much cheaper.
标准联轴器选购方便，价格比自行设计的非标准联轴器要便宜很多。
The great effect of benefit coupling on moral principle and standard was discussed with the viewpoints of systems theory.
从系统理论出发，分析了利益耦合对道德原则和规范产生的重大影响。
A. N. s. I. standard b2.4-this standard controls NIBCO hose coupling screw threads.
标准B2.4 -这个标准控制美国尼必可软管连接螺丝螺纹。
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