分配阀的英文：
distributing valve
distribution valve
selector valve

distributing是什么意思：
vbl.
1.分配，分发，分布

distribution of concept
概念的周延

This distribution, then, has two modes called a bimodal distribution.
这种分布有两个众数，叫做双峰分布。

The distribution is tabled as below.
其分布情况列表如下。

valve是什么意思：
n. 阀门；瓣膜；真空管
v. 装阀于；以活门调节

Valve Disadvantages: The valve is difficult to close and requires the operator to double close the valve.
阀门的缺点:阀门难以关闭，要求操作者二次关闭阀门。

pilot valve governor
带伺服电动机的调节器辅助调速器

The valve has jammed shut.
阀门给卡住了打不开。

distribution是什么意思：
n. 分布；分配；配置

distribution of concept
概念的周延

This distribution, then, has two modes called a bimodal distribution.
这种分布有两个众数，叫做双峰分布。

The distribution is tabled as below.
其分布情况列表如下。