Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/7dca0deb7626280486ee5952ae4c7b67.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 enveloping ring例句_enveloping ring英汉例句_enveloping ring双解例句_欧米惠必应词典
The optimum design of plane quadratic enveloping ring surface worm drive has been realized using the theory and method of optimization. 针对平面二次包络环面蜗杆传动，运用优化理论和方法，对其进行了优化设计。