1·The old Obama failed to wear a flag pin.
昔日的奥巴马没有戴过国旗胸针。
2·Many resent his apparent flip-flopping on important issues, like gun-control and whether or not to talk to Iran and Syria, as well as less important ones, like whether to wear a flag pin.
许多人对他在一些重要事件上的明显前后矛盾表示愤慨，例如枪支管理及是否与伊朗和叙利亚谈判，以及一些不太重要的事情，像是否别国旗别针这样的问题。
3·Pin-on-disk wear test equipment set in S-570 SEM is introduced in this paper.
本文介绍了一种装在S - 570扫描电子显微镜中的销-盘式磨损试验装置。
4·Pump wear parts are mainly drive shaft and bushing, passive gear center hole and shaft pin, pump shell lumen and gear, gear face and pump cover, etc.
齿轮泵的磨损部位主要有主动轴与衬套、被动齿轮中心孔与轴销、泵壳内腔与齿轮、齿轮端面与泵盖等。
5·Wear. Any wear exceeding 10% (or as recommended by the manufacturer) of the original section dimension of the hook or its load pin.
磨损。 吊钩截面周长或承载销超过磨损超过10%（或厂家推荐值）。
6·The rig tongs hinge pin, latch lock and springs must be inspected at regular intervals and changed out if excessive wear is encountered.
必须定期检查大钳的折页销子，扣合头和弹簧，如果出现磨损超标，就更换。
7·Just wear the flag pin already.
只是要挂上国旗国徽。
8·The wear of the unmagnetized and magnetized high speed steel material are compared in the wear between pin and disk text.
通过销盘的磨损对比试验，对进行了磁化处理的与未作磁化处理的高速钢材料作了耐磨损性能的研究。
9·Between the regular inspection section and the pin belt between the watchband shell and spring bolt, appear to prevent out or wear, often sprang, will be trimmed or replaced in time.
定期检查表带节之间和壳带之间的销钉以及弹簧栓，防止有窜出或磨损的情况出现，经常窜出的，就要修整或及时更换。
10·These areas are subject to wear as pin stacks are moved by the normal action of the key.
这一部位因钥匙推动珠子的活动，而比较容易磨损。