| 1. | 3 . the design of screw gear
3 .螺旋轮的设计
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| 2. | Screw geared chain hoist
螺旋链条起重机
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| 3. | 20low gear and screw gear
20低和螺旋
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| 4. | Moreover , the calculating of screw gear can t directly follow the straight gear formula 1 and 2 , but
另外，螺旋轮模数的计算也不能按直轮设计公式1和2 ，而是：
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| 5. | The features of metal screw gear is reducing noise and libration . what is noticeable is : the equivalent plastic straight gear may effectively reduce the noise and libration
金属螺旋轮通常特点是能降低噪声和振动值得注意的是，等效的塑料直轮可以更有效地降低噪声和振动。
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| 6. | Mc nylon boasts of fatigue - proof , anti - impact and abrasive resistance etc . it has been successfully applied on straight gear , worm wheel , bevel wheel and screw gear for 25 years
Mc尼兼有耐疲劳抗冲击和耐磨等性质，使其在轮应用上极受欢迎，已成功地应用在直轮蜗轮斜轮和螺旋轮上有25年的历史。
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| 7. | In order to confirm the stress of the plastic screw gear , it is necessary to modify the straight design formula 1 and 2 , so as to compensate the contact pressure caused by different gear shape
为确定作用在塑料螺旋轮所受的应力，需要修改直轮设计公式1和2 ，以补偿二者之间形不同而所受的接触压力不同。
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