机电英语_电子课件 Unit 7 Unit 7.pptVIP

尚辅网 尚辅网 Inspection Technology Contents PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage A PartⅠ Passage B PartⅠ Passage B PartⅠ Passage B PartⅠ Passage B PartⅠ Passage B PartⅠ Passage B PartⅠ Passage B PartⅠ Passage B PartⅠ Passage B PartⅠ Passage B PartⅠ Passage B PartⅠ Passage B Part Ⅱ Simulated Writing Part Ⅱ Simulated Writing Part Ⅱ Simulated Writing Part Ⅱ Simulated Writing Part Ⅱ Simulated Writing Part Ⅱ Simulated Writing Part Ⅱ Simulated Writing Part Ⅱ Simulated Writing Part Ⅱ Simulated Writing Part Ⅱ Simulated Writing Part Ⅱ Simulated Writing Part Ⅲ Speaking Part Ⅲ Speaking Part Ⅲ Speaking Part Ⅲ Speaking Part Ⅲ Speaking Part Ⅲ Speaking Part Ⅲ Speaking Part Ⅲ Speaking http//: 尚辅网 As the diameter of a single turn potentiometer is increased, improved accuracy is obtained as a result of the greater length of the resistance element. By shaping the element in the form of a helix and permitting the slider to move along the helix as it rotates, the length can be increased further with a corresponding increase in accuracy. The resultant unit is a multiturn potentiometer, and it is frequently made in 3-,10- and 15-turn sizes. Obviously, the shaft in a multiturn unit cannot rotate continuously, and mechanical stops are the limits of travel. Potentiometers Translation 尚辅网 返回 Translation Passage A 当单圈电位计的直径增大时，由于电阻元件增长，精度也就提高。如果把电阻元件制成螺旋形，并在转动时使滑动触头能沿螺旋线移动，则可进一步将电阻元件加长并相应的提高精度。这样形成的电位计就是多圈电位计，一般制成3圈，10圈和15圈。显然，多圈电位计中的轴不能连续转动，而且在行程的极限位置需要有机械止挡。 尚辅网 面试是获得工作机会的一个关键阶段?招聘者往往不只是找一个称职的职员,他们希望找一个能够进一步交往的人?因此,求职者在面试时的表现就举足轻重了?现将可能帮助面试取得成功的一些注意事项和常见问答分述如下: 一? 面试注意事项 1.面试前夜要早睡,当日要早起,穿着整齐干净,而且早餐要吃好? 2.面试前要思考一下,你在该公司能做什么工作,并随身携带需要的证件?证书等? 3.考虑一下面试官可能会提的问题,做好回答的准备,同时准备你要问的问题单? 面试技巧(Interv