... 连续齿人字齿轮 continuous tooth double-helical gear 连续齿人字齿 continuous tooth double helical gear 人字齿轮 angular gear; chevron gear; double heical spur wheel; double helical (or herring-bone) gear; double helical gears; double helical spur gear; double helical spur wheel; double-gelical gear wheel; double-helical gear; doublehelicalgear; doublehelicalorherring-bonegear; herring bone gear; herringbone gear ,double helical gear; herringbone wheel; twin helical gear; v-gear ...

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