Warning: file_put_contents(): Only 0 of 5162 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/73904.com/index.php on line 55 working-hours method例句_working-hours method英汉例句_working-hours method双解例句_骑士汉英词典
This method frequently caused the layer-shaped cracks in the center of the forgings, and also wasted a large number of the raw materials and working hours. 这种方法不仅容易在锻件心部产生层状裂纹，而且浪费了大量原材料和加工工时。