“head gate”的概念、定义、翻译、参考文献-科学参考

单词	head gate
释义	head gate [`hed ´gāt] ^{CIVIL ENGINEERING} 1. A gate on the upstream side of a lock or conduit. 2. A gate at the starting point of an irrigation ditch. ^{PETROLEUM ENGINEERING} The gate valve that is installed nearest the pump or compressor on oil or gas lines.
随便看	optocoupler optoelectronic amplifier optoelectronic isolator optoelectronics optoelectronic scanner optoelectronic shutter optogalvanic effect optogalvanic spectroscopy optoisolator optometrist optometry optophone optovoltaic effect OPW method or ora oral oral arm oral cavity oral character oral contraceptive oral dependence oral disc oral erotic stage oral erotism

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。