查询词典 nitrate

We tested the following items every two hours before and after those nitrobacteria worked,respectively,i.e.,ammonium,nitrite,nitrate and the δ13C values of dissolved organic matter.

有机质矿化分解过程中，碳同位素经过化学反应、蒸发、扩散和生物化学等过程发生同位素分馏，δ13C值发生相应的变化[4，13]。

Based on the long-term field experiments, the relationships between soil nitrogen balance, nitrogen utilization efficiency and soil nitrate were studied.

利用长期肥料试验资料研究了土壤氮素平衡、氮肥利用率和土壤硝态氮之间的相互关系。

In nitrogen-fixing populations this 'new' nitrate and nitrite can be derived from the assimilation of nitrogen gas.

这些自己"堆肥"的豆科植物还能在其根瘤中的共生细菌的帮助下固定大气中的氮，从而将氮循环的主要步骤综合在一种生物中。

The measures of prevention from N-nitro so compounds on the human health risk are mainly to reduce nitrosamines and its precursor nitrate and nitrite, and reduce nitrosamine intake and block the synthesis of it in vivo.

预防N-亚硝基化合物对人体健康的危害主要是：减少亚硝胺及其前体物硝酸盐及亚硝酸盐的摄入和阻断亚硝胺在体内的合成。

The ammonia changes to nitric acid,the further conversion of nitrate is nitrosamine which has serious function for the human beings, threatenning the mankinds health directly.

氨转化为硝酸，通过饮用水而诱发婴儿的高铁血红蛋白症，硝酸盐进一步转化为亚硝胺则具有严重的"三致"作用，直接威胁着人类的健康。

The quantity of nitrous acid is proportional to the power of light and concentration of uranyl nitrate and decreases with the increase of concentration of nitric acid at higher acidity.

亚硝酸的生成量与光照功率和U的浓度成正比，当酸度大于0.1mol/l时，其量随酸度增加而减少。

By treating this precipitate with nitrous acid followed by a recrystallization process, copper nitrate was recovered in 82.32% yield.

该沉淀经硝酸溶解和浓缩结晶可以得到硝酸铜，其回收率为82.32%。

OBJECTIVE:To eualuate in vitro antibacterial activities of silver nitrate and povidone-iodine for preventing ophthalmia neonatorum.

目的：测定并比较2种用于预防新生儿眼炎的药物的体外抗菌活性。

Determination of dissolved fluoride, chloride, nitrite, orthophosphate, bromide, nitrate and sulfate ions, using liquid chromatography of ions.

液态离子色谱法测定溶解的氟化物、氯化物、亚硝酸盐、亚磷酸盐、溴化物、硝酸盐和硫酸离子。

ResultThe contents of nitrate of 9 wild vegetables ranged from 3.76 to 256.08 mg/kg. The content of Alternanthera philoxeroides was the highest and that of Oxalis corniculatawas the lowest.

结果9种野菜硝酸盐含量范围为3.76~256.08 mg/kg，空心莲子草的硝酸盐含量最高，含量最低的是红花酢浆草。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。