A truss is rarely used nowadays, only when surgery is not possible or needs to be delayed.

桁架是很少使用的今天，只有当手术是不可能的或需要被延迟。

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A hart was being pursued by some dogs. It ran into an ox-stall, and hid itself in a truss of hay.

一只雄鹿被猎狗追赶得很急，跑进牛栏里，躲在一大堆干草里面，只有鹿角尖露在外面。

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For a truss with more than one redundant bar, more than one release will be required to obtain the primary frame .

对于有一个以上多余杆的桁架要得到基本体系，就要放松一个以上的约束。

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The Discovery and its seven-person crew will deliver a final set of solar arrays and the last main truss for the space station.

VOA: standard.2009.03.15

It's a steel truss bridge, meaning it has a boxy steel frame.

NPR: Feds Look For Temporary Fix After I-5 Collapse

In a blog Ms Truss described England's adult-to child ratios for nurseries and child minders as "restrictive".

BBC: Cut nursery staff to child ratio, urges minister

Earlier this year, a report by Elizabeth Truss MP, now education minister, said staffing ratios in nurseries should be reduced to cut red tape and costs.

BBC: Cutting nursery staff ratios 'may reduce care quality'