大多数钢瓶设计了温度升高时的泄压装置.Most cylinders are designed to vent contents when exposed to elevated temperatures.过水压保护功能,可在水压超高时自动泄压.Over the protection of water features in ultra - high pressure relief automatically.介绍了电磁泄压阀在锅炉过热装...
the ramparts and fortifications of the Old Town旧城区的城墙和城堡The fortifications were out of repair.防御工事年久失修." Our present fortifications are only a mile from town,'said Captain Randall shortly." 我们现在的防御工事距离市区只有一英里远."兰德尔队...
The telex chattered all day and night with news bulletins.电传机没日没夜“嗒嗒嗒”地接收新闻稿。Erica was friendly and chattered about Andrew's children.埃丽卡很和气，不停地念叨着安德鲁的孩子们。They chattered away happily for a while.他们高兴地闲扯了一会儿。...