螺旋气道通过气门间隙与缸壁的气流相互作用也产生涡流，因此，涡流数取决于相应气缸中心的螺旋线方位。
Helical port also produces swirl by airflow interaction of valve gap and cylinder wall, so swirl number depends on helical line direction of relevant cylinder center.
主营：皮带、轮胎、内胎、汽缸、活塞、活塞环、火花塞、电门锁、轮古、轴承、空气芯、刹车皮、拉索线、离合器、波盘、气门。
Main: belts, tires, inner tubes, cylinders, pistons, piston rings, spark plugs, power door locks, Lungu, bearings, air core, brake pads, cable lines, clutch, odds, valve.
空调暖气控制或混气门引动器线束电路。
The wire harness circuits for the heater-A/C control or the blend air door actuator.
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