water tight test,rain drop test;drip-proof test是什么意思

用法例句

Experiment on release of crusted residual oil in Zihe Riverbed under the condition of rainfall eluviation;

降雨淋滤条件下淄河滩陈化残油释放试验

Taking the tall atrium of a building as an example,the technical and economic characteristics of deluge system and intelligent fire sprinkler system were analyzed,and the optimization plan for the fire extinguishing system in the tall atrium was established.

以某建筑内高大中庭为例,对比分析了雨淋系统与智能喷水灭火系统的技术经济特性,制定了该高大中庭喷水灭火系统的优化方案。