单词	preformed slab
释义	preformed slab 物预制板
随便看	speed-governing rate speed-governing servomechanism speed governing system speed-governing system speed governing technology speed governing through converter speed governor speed governor characteristic speed governor control speed governor control lever speed governor droop speed governor fuel-injection pump speed governor housing speed-governors of elevator speed governor spring speed governor system speed gradient speed-gradient methodology Speed Graphic speed grovering speed-grown poplar speed-growth device speed grvernor speed gun Speed hacker