This will mean installing a three-way motorised valve, a cylinder thermostat and making some changes in the pipe layout.
这将意味着安装一个三通电动阀，一个气缸恒温器并对管道布局进行一些更改。
2
Thus, Company a, the smallest of the three, sold the majority of its products to pump and valve manufacturers.
公司A，三个公司中最小的一个，其产品的大多数卖给抽水机和阀厂商。
3
The fitting of a heavy, threevalve-cap on the Macondo oil well on July 15th marked the opening of just such a new act in the drama of the Deepwater Horizon, its loss and its aftermath.