However,helical spur gears are quiter in operation and have 的翻译是：什么意思？中文翻译英文，英文翻译中文，怎么说？-青云在线翻译网

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匿名	关注：1 2013-05-23 12:21 求翻译：However,helical spur gears are quiter in operation and have greater strength and durability than straight spur gears是什么意思？待解决悬赏分：1 - 离问题结束还有 However,helical spur gears are quiter in operation and have greater strength and durability than straight spur gears 问题补充：

匿名	2013-05-23 12:21:38 然而，螺旋正齿轮是quiter运转，并有较大的强度和耐久性比直正齿轮

匿名	2013-05-23 12:23:18 正在翻译，请等待...

匿名	2013-05-23 12:24:58 正在翻译，请等待...

匿名	2013-05-23 12:26:38 正在翻译，请等待...

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求翻译：However,helical spur gears are quiter in operation and have greater strength and durability than straight spur gears是什么意思？