Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/1eb8756ff89a13751d359f4c3df01714.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 back-end例句_back-end英汉例句_back-end双解例句_欧米惠必应词典
The device can be used to reduce the two peaks of crankshaft net torque by the balancing of the counterbalance hanging on the back end of the pumping bot. 这种装置通过是挂在抽油机后端的平衡重的平衡作用，降低一次平衡曲柄轴净扭矩的两个峰值，达到减少能耗提高效率的目的。