fire hose coupling是什么意思

用法例句

Research on improving the quality of fire coupling products;

消防接口产品质量改进的探讨

Research on influencing factors of fire hose s pressure loss and its calculation method;

消防水带压力损失的影响因素及计算方法研究

Analyses and solution of key problems presencing in factory inspection on fire hose;

消防水带工厂检查中有关难点问题

In recent years,a good many of sanitary machines appear in the market,but they are never used to clean the fire hose.

介绍了一种新型消防水带清洗机的设计背景、设计过程、主要组成、工作原理及特点等。