This crude oxygen liquid is withdrawn from the column and sent to a low-pressure column where it is distilled until it meets commercial specifications.
接着从蒸馏塔取出原始液氧,送到一个低压塔,在这里继续蒸馏,直到满足商业技术规范。
The pressure of having to do a column every month also makes me stay abreast of many subjects that interest the business and professional readers of the magazine.
每月一次专栏的压力让我时刻关注引起杂志的商业和专业读者兴趣的课题。
What happens is this: the water column gradually heats, but high pressure keeps the deeper parts from boiling.
这一切是这样发生的:水柱被逐渐加热,但是压力使深处的水不能沸腾。
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