1. The second floor where the two pull plug welding, installation, assembly pull each one, and pull supporting unicast ultrasound machines are four, for a total of four pull. 二楼设有插件焊接拉两条，安装，组装拉各一条，与拉配套的还有超声播机四台，共计四条拉。
2. Brief introducing tall (fast) the development of fast railroad, analysed tall (fast) the fast railroad requirement to rail. 简要介绍了高 （快 ）速铁路的发展 ，分析了高 （快 ）速铁路对钢轨的要求。
3. Extending coax muscle, pull-up, pull up in a cross way and pull down in a cross way etc. 具有十字下拉，十字上拉、髋部肌群训练等多种拉伸锻炼方式；可进行引体向上训练；
4. Instead get in the attack position above the saddle stand bend at the waist pull back with the arms don't pull straight up or you will pull the front wheel off the ground. 正确的方式是采攻击姿势，屁股离开座垫，弯腰，手臂往后拉，但不可拉得太直，否则会把前轮拉离地面。
5. Based on a lot of animal experiments, scientists have developed two kinds of cryopreservation programme:slow cooling-fast thawing method(two step method), fast cooling-fast thawing method. 经过大量动物实验，人们建立了两种冷冻程式：慢速冷冻-快速复温法（两步法）；快速冷冻-快速复温法。
网络释义
pull a fast one 欺骗;
欺骗.;
诈取;
搞鬼;
pull a fast one on sb 欺骗某人;
偏到了某人;
on one's feet pull out pull through recuperate 恢复健康;
