“shell knocker”的概念、定义、翻译、参考文献-科学参考

单词	shell knocker
释义	shell knocker [`shel ´näk·ǝr] ^ENGINEERING A device to strike the external surface of a horizontally rotating process vessel (for example, a kiln or a dryer) to loosen accumulations of solid materials from the inner walls or flights of the shell. Also known as knocker.
随便看	activating enzyme activating reagent activating receptor activation activation analysis activation cross section activation energy activation record activator activator ribonucleic acid active accommodation active anaphylaxis active antiroll system active area active balance active center active chaff active communications satellite active component active computer active controls technology active-cord mechanism active current active detection system active device

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。