junction n valve 连接阀
If the valve body material can be welded, but very different thermal expansion coefficient, or changes in operating temperature range of a larger thread junction closure weld must be honey.
如果阀体的材料是可以焊接的，但膨胀系数差异很大，或者工作温度的变化幅度范围较大，螺纹连接部必须进行蜜封焊。
Opening also causes the junction member to be lifted for dose dispensing into the kink valve.
可枢转盖的打开还会使连接件上升，以 将一定剂量的药物分配到弯折阀内。
She invented the water valve, water heater and pipes installed in the junction.
她发明的节水阀，安装在热水器与管道的连接处。
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