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- decreasing pitch screw 收敛式螺杆
- Also the technique has important value on the machining of variable pitch screw. 以上工艺方法对加工变螺距螺杆同样具有重要参考价值。
- This paper introduces a design method of variable pitch screw, This methed make use of multinomial, bring out the boundary conditions which the design need and the operating range of the methed. 本文介绍了一种变螺距螺杆的设计方法，该方法采用多项式，并提出了设计所需的边界条件和这种方法的使用范围。
- Keywords variabe pitch screw;packaging machine;design mothed;multinomial; 变螺距螺杆;包装机械;设计方法;多项式;
- She has keyed the piano up to concert pitch. 她已经把钢琴的音调升到音乐会的音高标准。
- I can't get this screw to come out of the wall. 我无法把这颗螺丝钉从墙上取出。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- The brackets want an extra screw. 托架需要再加一个螺钉。
- The coach built the team up to a fighting pitch. 教练使全队振作起来，准备一搏。
- The pitcher tends to pitch the ball too high. 这个投球手常把球掷得过高。
- They that touch pitch will be defiled. 近墨者黑。
- The birthrate in the city has been decreasing. 该市的出生率一直持续下降。
- Interest in the sport is decreasing. 人们对此项运动的兴趣已逐渐淡薄。
- We planned to pitch our camps in the mountains. 我们计划在山里扎营。
- The speaker brought the crowd to fever pitch. 演讲者激起群众高昂的情绪。
- The taste of the lemon made her screw up her face. 柠檬把她酸得龇牙咧嘴。
- Does this lid screw on, or does one press it down? 这个盖子是拧的还是按的?
- The fans rushed onto the pitch in an excited mob. 球迷群情激昂，一窝蜂涌进球场。
- Turn the screw to the right to tighten it. 将螺钉向右旋紧。
- Let's pitch out the troublemakers. 把这些捣乱分子赶出去。
