它的广泛报导集中在镁的性质和它用于汽车与汽车零件合金的费用与性能。
Its comprehensive coverage focuses on cost and performance properties of magnesium and its alloys as used in automobiles and automotive components.
我们会观察土壤的化学性质——比如某个地方的土壤里有多少氮或者镁——然后与附近土壤的化学性质作比较。
We look at soil chemistry—for example, how much nitrogen or magnesium there is in the soil in one spot—and we compare it with the chemistry of the soil a short distance away.
本文介绍了氯酸钙和氯酸镁合成和性质检验的方法。
This paper introduces the preparation and quality tests of calcium chlorate.
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