The lecturer spouted for hours.讲师滔滔不绝地讲了几个小时.In 1978 there were 884 students at a lecturer/student ratio of 1:15.1978年有884名学生，师生比为1比15。Rainey was an unimpressive, rather dull lecturer.雷尼是个平庸而且相当乏味的老师。He was much in deman...
In 1978 there were 884 students at a lecturer/student ratio of 1:15.1978年有884名学生，师生比为1比15。The allegation has caused one lecturer's career to bite the dust.这项指控断送了一名讲师的前程。Rainey was an unimpressive, rather dull lectu...
研究自动络筒机空气捻接器的捻接原理.And also , the yarn motion in the splicing and the splicing principle has been studied.全部预置线路 -- 配置弹性接线片的终端接线盒,不需要再缠绕和捻接电源线.Completely pre - wired - with pressure lug terminal block eliminating need for...
商业上采用的以镍作催化剂的氢化有两种.Commercially two main types of hydrogenations are carried out with Nickel catalyst.抑制剂和促进剂能影响氢化速率.Inhibitors and promoters may affect the rate of oxxidution.用六氢化邻苯二酸酐加入到邻苯二酸酐中,可使其放热反应减慢.Exothermic reac...