nitrogen base 含氮碱基 ; 氮碱 ; 氮碱基 ; 氮盐基
petroleum nitrogen base 石油中的含氮碱
Yeast Nitrogen Base 酵母氮源 ; 酵母氮源基础 ; 酵母基础氮源
nitrogen base gas 氮基气氛
Yeast Nitrogen Base without- 酵母氮源基础
nitrogen-base atmosphere generator 氮基气氛发生炉
Such intercropping is also a natural way of fertilizing: the legumes growing at the base of the taller sorghum add nitrogen to the soil.
这样的间作也是一种天然施肥方式：豆子在较高的高粱底部生长，可为土壤增添氮。
Melamine is an organic base chemical most commonly found in the form of white crystals rich in nitrogen
三聚氰胺是一种有机质的化学物质，最常见于含氮丰富的白色晶体。
Cytosine organic compound of the pyrimidine family often called a base consisting of a single ring containing both nitrogen and carbon atoms and an amino group.
胞嘧啶：嘧啶族的有机化合物。常被称为基，包含一个单环，内有氮原子和碳原子，还有氨群。
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