First, a measured amount of white solid is taken.

首先，加一点一定量的白色固体。

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However, the amount of helium in the universe, as measured by spectroscopy, suggests that there are far more baryons in the universe than estimates based on galactic luminosity indicate.

然而，通过光谱学测量，宇宙中氦的数量表明，宇宙中重子的数量要比基于星系光度所估计的要多得多。

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She named the other radium. She measured the amount of radioactivity, an atomic property, and felt that the radioactivity was proportional to the amount of the element.

她测量了这两个元素放射性的总量和原子性质，感觉到物质的放射性是同放射性元素的总量成比例的。

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They cannot harm themselves because the amount of painkiller in the pump is carefully measured and limited.

VOA: special.2010.05.04

It's measured by subsequent performance in the amount by which the winner wins equals the amount by which the loser loses, but it costs a lot to play the game.

之后的业绩表现可判输赢,而且赢方赚的钱,就等于输方赔的钱,但是交易本身会产生巨大的成本

耶鲁公开课 - 金融市场课程节选

The researchers then measured the amount of light, or radiance, present in each unit of the grid.

FORBES: The Case for Keeping the Lights On

For the iPad test, Vairmohan measured the amount of power used to charge up an iPad with a drained battery.

MSN: That iPad costs you just $1.36 a year to charge

They counted the number of moles and measured the amount of freckles they had on a scale of 0 to 100.

BBC: Twins offer skin cancer clue