For the crew of a spacecraft ramping up to light speed, interstellar space would appear highly compressed, thereby increasing the number of hydrogen atoms hitting the craft.
对宇宙飞船的船员来说，速度升高到光速，宇宙空间将被高度压缩，因此增加了撞击飞船的氢原子数量。
Fuel cells can use various sources of hydrogen, including a simple tank of compressed gas.
燃料电池能使用各种来源的氢气，包括一种简单的压缩气储罐。
Regardless of the method of production, the product steam is then separated into its components and the hydrogen dried, purified, and compressed into cylinders or tubes for transportation.
不管用什么生产方法，接着产品蒸气都要被分成它的组成成分，随后把氢干燥、净化、压缩进钢瓶或管道，以便运输。
Changes in hydrogen content in liquid aluminum were measured under different relative humidity of compressed air in low pressure die casting.
在不同的压缩空气相对湿度下，试验测定了低压铸造过程中液态铝合金氢含量的变化。
Changes in hydrogen content in liquid aluminum were measured under different relative humidity of compressed air in low pressure die casting.
在不同的压缩空气相对湿度下，试验测定了低压铸造过程中液态铝合金氢含量的变化。
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