无氮的

The rain water analysis contained data for both ammonium and nitrate, but none for dissolved nitrogen.

雨水中的分析为铵和硝酸盐的数据，但无氮溶解。

Due to organic N exiting in the pure bacterial cultures,when using free chorine to inactivate microorganisms,freest chlorine transforms into organic N-chloramines which are no use in disinfection process.

在实验室研究游离氯灭活微生物的试验中发现，由于试验体系中有机氮的存在，投加游离氯消毒后，游离氯会迅速与之反应转化为无消毒作用的有机氯胺。

The major components of the rap oil seedcake s are protein,nitrogen-free lixivium,coarse fiber,crude fats,and ash content.

菜籽油饼的主要成分为蛋白质、无氮浸出物、粗纤维、粗脂肪和粗灰分，这些成分在钻井液中都具有较好的降滤失效果。

Serum endostatin, NO may probably be used as a marker of diagnosis in the earlier stage of lungcarcinoma, and sICAM might be a sign of metabasis in lung cancer.

因此，血清内皮抑素、一氧化氮可能成为肿癌早期诊断的指标，细胞间粘附分子可能作为肺癌诊断和判断有无转移的指标。

A total of 29 isolates were selectively obtained from these rhizosphere soli samples based on their growth on nitrogen-free medium and their resistance to 100℃ for 10-15 min.

首先利用芽孢杆菌中芽孢的抗热性将土壤溶液在100℃沸水中煮10-15分钟，然后用选择性无氮培养基进行初筛得到29株菌落形态不同的菌株

Compared CMEC with CM, it was found that the CF and hemicellulose content in maize stalk were descending along with the retard of reaping time, but cellulose and lignose were ascending.

常规养分分析和纤维分析结果表明：三种处理的秸秆饲料中去皮玉米秸压块饲料的粗脂肪和无氮浸出物及半纤维素含量最高，纤维素和木质素含量最低。

The content of SMBC,SMBN and mineralizable carbon 〓 in profiles of Fluvio-marine yellowsoil,Fluvio-aquie soil,Quaterary red clay were all decreased with increasing depth,but themineralizable nitrogen 〓 was not true.

相关性分析表明，葡萄糖〓在0～3d的周转速率与土壤代谢熵〓呈显著性正相关；3～28d内，葡萄糖〓周转速率与土壤理化性质和生物学性质都无显著的相关性；28～294d内，葡萄糖〓周转速率与土壤总有机碳、全氮、CEC呈显著或极显著负相关，与土壤砂粒含量呈显著性正相关。

The endogenous amino acid loss was measured by statvation and Nitrogen-free diet methods.

试验结果表明，除菜籽饼外，无论是氨基酸的表现消化率均值或用绝食法或无氮日粮法估测的真消化率均值，鸡鸭之间均有显著（P＜0.05）或极显著差异。

Entry of NH〓 into the cells of Frankia occurs usually by two routes. In N-free media, an inducible active transport permease mediates the concentrative uptake of NH〓.

无氮培养时，Frankia菌通常以主动转运的方式摄取NH〓，而在有NH〓培养时则以被动转运方式吸收NH〓。

In this reaction, DMSO may act as a Lewis base to activate the nucleophile, which facilitates the ring-opening reactions.

与此同时，我们还发现在DMSO中，无催化剂的中型条件下，硫，胺以及各类硅亲核试剂可以对氮杂环丙烷化合物开环。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷