“valve head”的概念、定义、翻译、参考文献-科学参考

单词	valve head
释义	valve head [`valv ´hed] ^{MECHANICAL ENGINEERING} The disk part of a poppet valve that gives a tight closure on the valve seat.
随便看	shear thinning shear transformation shear-viscosity function shearwater shear wave shear zone sheath sheathed bacteria sheathed explosive sheathing board sheathing paper sheath-reshaping converter sheave SHED shed shedding shed dormer shed roof SHEED Sheehan's syndrome sheen sheep sheepsfoot roller sheep's-head clock sheepskin wheel

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