They do not grasp the broad situation and spend their time magnifying ridiculous details...他们不去把握大局，而是在细枝末节上花费时间大做文章。Morgenes had to grasp the door lintel to keep from toppling.Morgenes不得不抓住门楣以防摔下去.Lao Yang thought as he...
Welding is one of the important technologies in impellers " artifactitious . "焊接是 叶轮 加工的重要工艺之一.The welding conditions should always be neutral or slightly oxidizing.焊接气氛必须永远保持中性或微氧化.The welding is so smooth that you can ...