It shall be of robust and rigid construction.

隔火帐之构造必须坚固。

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The span, or distance, between supports of a Single Floor should not exceed 5 metres in order to maintain a rigid construction.

单层楼面的支座之间的距离，即跨度，不应超过5米，以便保证结构的刚度。

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It's rigid construction helps maintain more even pressure differentials keeping the filter from collapsing and shutting down your compressor.

这是僵硬的建设有利于保持甚至更差的压力使过滤器崩溃和关闭您的压缩机。

youdao

Why would anyone pay probably twice the asking price of the PS3 for additional features that appear to begin and end with "rigid beam construction"?

ENGADGET: Why would anyone buy a Blu-ray player (other than the PS3)?

The open-cage printer will work using "fused filament fabrication" with 1.75mm filament, and will also feature 100 micron layer resolution (0.1 millimeter), rigid aluminum construction, an open-source software tool chain and optional heated build platform.

ENGADGET

Construction Workplace Misclassification Act establishes rigid criteria for differentiating independent contractors from employees in the construction industry.

FORBES: Criminal Penalties For Misclassifying Independent Contractors?