短語(yǔ)詞組短語(yǔ)dead -center ignition detail 死點(diǎn)點(diǎn)火top dead -center indicator 上止點(diǎn)標(biāo)記bottom dead -center indicator 下止點(diǎn)指示器lower dead -center indicator 下止點(diǎn)指示器 返回 dead center