They asked 74 university students to take a timed, easy general-knowledge quiz which they were asked to finish as quickly as possible without compromising accuracy.
在保证正确率的基础上，他们要求74名大学生尽快完成一份计时的、一般知识测验。
CBN is an ideal tool material for finish and semi_finish turning powder superalloy. It not only ensures the high machining accuracy, but also can obtain longer tool life.
对精车和半精车而言，CBN是车削粉末高温合金的一种理想刀具材料，它不仅可保证高的加工精度，而且可获得长的刀具寿命。
Generally, grinding is considered to be a finishing process that is usually used for obtaining high-dimensional accuracy and better surface finish.
一般而言，磨削被认为是一种通常用于获得高尺寸精度和较好表面光洁度的精加工作业。
应用推荐