But more important, scientists and engineers have since compared the weight of a volume of material with an equal volume of water and called the result Specific Gravity.

但更为重要的是，科学家和工程工程师们一直将一定体积的材料和同体积的水相比较，把比较的结果称之为“比重”。

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Material from the large blue companion star is seen being pulled toward the black hole by its powerful gravity.

在强大的引力作用下，蓝色伴星上的物质正在被拉入黑洞。

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Extra gravity is an effective method of producing homogeneous crystal material.

超重力是制备无偏析晶体材料的有效手段之一。

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Corporate clients might be harder to come by but would probably be drawn from sectors that deal with material sciences, particularly engineering or metallurgy, where a low-gravity environment would make possible types of research and production that are impossible or prohibitively expensive on Earth.

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There's a mixture of excitement and apprehension and sort of the gravity of it and then the--putting the show together and working up new material.

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