... standard plain metal-slitting 标准普通金属开槽锯床 Plain Edge Metal Content 平原含量 plain precious metal jewelry 纯贵重金属首饰 ...
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同样，美洲平原如果停止放牧，土壤中的碳含量也会大大提高。
The American plains, too, would accumulate carbon in their soil if grazing stopped.
目的：评价吸入不同氧含量气体对平原犬模拟高原后动脉血及脑脊液的血气变化及酸碱平衡失调的影响。
AIM: To assess the effect of gas inhalation with different oxygen contents on the changes of blood gas in arterial blood and cerebrospinal fluid and acid-base imbalance of plain dogs in mimic plateau.
对江汉平原地区大棚土壤的盐分特征进行了研究，结果表明，连栋大棚表层土壤盐分含量达到10。
The results showed that the content of salts of surface soil in import connective plastic greenhouse was 10.
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