人们千方百计将这个世界建成更美好的家园，但除了小器械，管道安装和卫生之外，他们的成就少得可怜。
Men have put forth enoumous efforts to make their world a better place to live in; but except in regard to gadgets, plumbing and hygiene, their sussess has been pathetically small.
在那些会引起水锤撞击的卫生器具、设备或装置的热水和冷水给水管道上应该安装尺寸合适的水锤消除器。
Properly sized water hammer arresters should be installed on the hot and cold water supply piping to that fixture, equipment or apparatus wherein shock can be produced.
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