死点: [机械工程] dead center; [电学] dead spot; [生物学] dead point◇死点标记 dead-center mark; 死点发火 dead center ignition; 死点位置 mid-gear; middle gear; 死点压力 dead-end pressure
下死点: bdc (= bottom dead center )bdc bottom dead centerbottom centerbottom centrebottom dead centrebottom dead pointbottom stopbottomstoplower centerlower dead centerlower dead centrelower dead
