Inert helium, unlike hydrogen, is safer, but hydrogen has to be used for record launchings because of its greater lifting capacity.
惰性氦气比氢气更安全。但是,因为氢气具有更强的升举能力,必须用氢气记录发射。
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Industrial capacity utilisation has risen to a record high, and rampant domestic demand sucked in 41% more imports than a year ago in April, pushing the trade deficit to a record level.
As the LHC reaches its operational capacity-earlier this month it set a new record for the rate at which collisions occur-curious results are bound to crop up more and more frequently.