The machines used to mould, finish and check its O-rings are made in continental Europe, so have become dearer just when the firm is expanding.

用来浇铸，完成以及检查O型环的机械由欧洲大陆国家制造；如此一来，当公司规模扩大时，进口这些设备就需要投入更多的资金。

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The firm is not just an ideas factory: the O-rings are manufactured on-site, too.

该公司并非仅是一家点子公司：它还现场制作O型环。

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It's that person sitting in the corner nursing a salty camera and mumbling about 'o' rings to anyone that comes within earshot.

这些人会坐在角落拿着个含有盐分的照相机然后对别人喃喃自语道，这都是O型圈惹的祸。

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Way back in November of 1985, on just its second mission, Atlantis experienced a blow-back of hot gases past the primary O-rings in one of its solid rocket boosters, resulting in serious erosion of said O-ring.

ENGADGET: Space Shuttle Atlantis ends its run of predicting disaster for other NASA shuttles

They knew that cold overnight temperatures forecast before launch would stiffen the rubber o-rings.

NPR: Challenger: Reporting a Disaster's Cold, Hard Facts

The cold and stiff o-rings at one joint didn't flex and seal as designed.

NPR: Challenger: Reporting a Disaster's Cold, Hard Facts