An underwater weighing tank in the exercise physiology department at a local university is another option (some gyms occasionally offer measurements taken in portable tanks).

当地大学生理学系的水下称量桶是另一种方法(有些体育馆偶尔也会提供便携式罐体)。

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After up to 40 hours underwater, the researchers, in hopes of weighing the motionless spiders later, laid them out to dry.

被闷在水下40小时以后，研究人员想称一下这些已经不再动弹的蜘蛛的重量，就把它们拿出来晾干。

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But without ballast weighing down the bottom, the boat would list to its side and could trap Spotz underwater.

但是，如果在船舱底部没有压舱物，这船会向一边倾斜，这样会把斯伯茨困在水下。

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In that sense, not only is forgiveness of underwater mortgages a "moral hazard, " it's also cruel policy by the government for weighing on our individual ability to chase the best economic opportunities irrespective of locale.

FORBES: Political Economy