Blind advance

盲进───Blind advance

reusable inflatable closure plug can be designed and prepared in advance according to caliber, thereby avoiding customization defects of flanges or blind spots.───充气式密封塞可预先根据管径设计制作好，能重复使用，克服了采用法兰或盲头需要定制加工的缺陷。

And the blind about to be targeted at the one after, the men can not be tolerated, he telephoned a friend in advance so that, in this way, he could find some excuse to leave.───在和盲约对象待了一个晚上之后，在也无法忍受了，他事先让朋友打电话，这样他就可以借故离开。

an important part of no obstacle facilities developments, and modern social advance and civilization are reflected.───盲道作为无障碍设施建设中重要的组成部分，体现了社会进步和文明的提升。