Hold tube bend in position, Fig. 5, and mark tube on level with top of hex on compression coupling. Cut off tube at this mark.

将管子弯头握住在位置上，图5，在压紧联轴节上六角顶部标注管道水平位置。

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The "service-users" - as the volunteers here call them - are a truly disparate group - some look as if they've just stepped off the tube after a busy day at work, others are unkempt and smell feral.

这些“服务使用者”——这儿的志愿者这样叫他们——确实是一群异类——有些人看上去好像刚从忙碌工作了一天的管子上下来，其他人则衣衫蓬乱，带着凶猛的气息。

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No giant sucking sound, just the gentle hissing of an inner tube losing air, threatening a flat tire that could send the American dream machine off the road.

即便听不到较大的泄气声，只是嘶嘶地缓慢漏气，也会使名为“美国梦”的这台汽车的轮胎瘪掉，而偏离了正确的道路。

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In 1999, 5-year-old Gonzalez was found clinging to an inner tube off Florida after his mother and others drowned while fleeing Cuba toward American soil.

NPR: Cuba To Turn Over Florida Couple And Children

Created to help the world's couch potatoes turn the tube on and off without having to make the arduous 2-meter journey to the TV set, the standby feature has spread to virtually every appliance in the home and office.

WSJ: Switching Off Standby Mode

They were even able to use a stone of the wrong size to release one of the right size, which they then used to get the waxworm, and, more remarkably still, to prune twigs off a stick to make it fit the tube.

ECONOMIST: Tool use by non-tool-using animals