问题描述：
英语翻译
1.The screw diameter ranges from 6 to 100 mm,whereas the screw leaddoes it between 1 and 60 mm,keeping a certain proportionality between these two features.
2.If the lead is high,fast movements can be obtained but with a low mechanical advantage.Small leads imply slow movements but with a high mechanical advantage; at the same time small ones are more highly recommended to ensureprecision and controllability of the drive train.
第一段我知道意思,为了让大家理解前后意思放上来了,第二段我完全没看懂,
1.The screw diameter ranges from 6 to 100 mm,whereas the screw leaddoes it between 1 and 60 mm,keeping a certain proportionality between these two features.
2.If the lead is high,fast movements can be obtained but with a low mechanical advantage.Small leads imply slow movements but with a high mechanical advantage; at the same time small ones are more highly recommended to ensureprecision and controllability of the drive train.
第一段我知道意思,为了让大家理解前后意思放上来了,第二段我完全没看懂,
问题解答：
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