bit changing中文什么意思

例句与用法

1. There are a lot of surplus rural laborers need to transfer in our country . the key point of urbanization process is country urbanization . . therefore the best way is developing small town , which is deferent from developed countries . the government pay a great attention to develop small town and pick up the strategy of ‘ small town , big strategy ’ . so our country will qicken the development of small town , but the pattern of its development will have a little bit change
   从现实国情出发,中国在20世纪80年代选择了发展小城镇的城市化道路,并上升为“小城镇,大战略”的高度,这表明,在今后相当长时间内小城镇都将加快发展,但在发展原则和发展模式上将会有较大的变化。改革开放以来,随着乡镇企业的蓬勃发展,我国小城镇已经获得长足的发展,取得了巨大的经济社会效益。
2. The result of simulation of model 8 ? 1 / 2 ? xhp2s bit shows that , the torque on the bit changes randomly , and the degree of the change increases with the increase of the weight on bit ; the change of the torque on the upper part of the drillstring is not so large as that on the string ' s lower part , and the rotary speed of the bit changes smoothly overall
   对8英寸xhp2s钻头做了仿真，结果表明，钻头处受岩石的阻力扭矩是随机变化的，并有负扭矩出现，扭矩的变化幅值随静钻压的增加而增加；钻柱顶部转盘施加的扭矩变化不如底部剧烈；钻头的转速在局部有较小的波动，其总体变化较为平缓。