基本解释[土木建築工程]下泄冷卻劑英汉例句雙語例句The letdown ion exchangers (demineralizers) are designed to remove ionic impurities from the reactor coolant.淨化牀的作用是除去冷卻中的離子態的襍質。letdown coolant更多例句词组短语短語reactor coolant letdown 一廻路泄壓letdown coolant更多词组专业释义土木建築工程下泄冷卻劑