常見例句雙語例句At present, we develop and produce the main products including butterfly valve, ball valve, check valve, gate valve and so on.目前,開發(fā)生產的主要產品有蝶閥、球閥、止回閥、閘閥等。www.cr-expo.comWhen more than one boiler is connected to the main steam header, a stop check valve should be installed in the pipeline between each boiler and the header.如果連接主蒸汽熱水器的鍋爐不止一個,則在每個鍋爐與熱水器之間的管路上都應該安裝一個截止止回閥。At present, the development and production of the main products are butterfly valve, check valve, gate valve, ball valve, strainer valve, globe valve, slurry valve, diaphragm valves and so on.目前,開發(fā)生產的主要產品有蝶閥、球閥、止回閥、閘閥、截止閥、漿料閥、隔膜閥等。www.cr-expo.com 返回 main check valve