Winterize head, holding tank and fresh water system by draining or filling with non-toxic anti-freeze.

冬天组长,召开了排水系统及淡水池或填无毒防冻剂.

The curve and its character of the vapor liquid equilibrium of aceton water system was researched.

研究了丙酮水的相平衡曲线与特点。

The native minerals originating from Tertiary basanite of Yaoshan formation,the placer is in water systems around Fangshan.

原于第三纪的尧山组玄武质碧玄岩，砂则分布于方山周围的水系。

Problems of lead-zinc-aluminium scalings in washing water system for blast furnaces gas are analyzed. The solving methods are given.

钢高炉煤气洗涤水系统结铅锌铝垢问题，进行了分析探讨，并提出了解决该问题的办法。

Public transient noncom-munity water systems provide water in places where people do not remain for long peri-ods, such as campgrounds and service stations.

公共的暂时性非集体供水系统向不长期居住的地方供水，例如营区和服务站。