词汇	four-electrode valve
释义	four-electrode valve 四极管
随便看	functional manipulating operational functional manual functional mapping Functional margin functional mark functional marker Functional markers functional masterbatch functional master-hatch functional matching functionalmaterial functional material functional material and fine chemistry functional material precursor functional materials functional materials for building functional materical functional matrix functional matrix theory of growth functional maturity functional meaning functional meat product functional meat products Functional mechanism functional mechanlsm