The main volatile chemical components of RPR are(Z, Z)-9,12-octadecadienoic acid, n-hexadecanoic acid and 2-hydroxy-benzaldehyde.

赤芍主要挥发成分为（Z, Z）-9, 12-十八碳二烯酸，正十六碳酸和2-羟基苯甲醛。

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So if we work out the chemical potential, it's just one over N times A.

如果我们计算出化学势，它就是N分之一乘以A

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The increased N input may influence C and N turnover during litter decomposition process by changing chemical and microbial environment in forest floor.

外源氮输入可以通过改变土壤中的化学和微生物环境影响凋落物分解过程中的碳氮周转过程。

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Mr. Schmitz later confronted Mr. Daisey, and according to a transcript posted online, asked the stage performer about the workers he said were poisoned by the toxic chemical known as N-hexane.

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They looked specifically at a chemical called alpha 1, 4-N-acetylglucosamine.

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He said pressure on the Assad regime has been an obstacle to a fair U.N. investigation of the use of chemical weapons.

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