无氮的

In this paper, we have studied the content of the capsular polysaccharides of Bacillus mucilaginosus KO1 and the capability of the bacterial potassium-releasing from K-feldspar and biotite in the medium containing nitrogen or free of nitrogen.

研究了胶质芽孢杆菌KO1菌株在不同培养条件下，其荚膜多糖含量随时间的变化以及菌株在有氮、无氮培养基中的解钾作用。

Two technology including nitrocarburizing process and salt nitrocarburzing process haver been adopted. Several conclusions were obtained: firstly, nitrided layers consist of two layers including the outer white layer, mainly ε and γ′ with favorite errosion resistance, the inner dark layer consist of α-Fe.

再往里为扩散层，扩散层与原始组织无明显区别，是过饱和含氮的α-Fe固溶体，比原始组织更易受腐蚀；(2)试样经长时间氮碳共渗后，渗层最表面会出现疏松，这是因为Fe原子向外扩散，在ε相内造成Fe原子空位，空位向内扩散，并可能在晶界上或某些晶体缺陷处堆积，以致造成空洞。

So, we supposed that there is possibly a positive ion channal existed in the capsular layer.

将胶质芽孢杆菌放置在有氮或无氮培养基中培养，检测其荚膜多糖含量的变化。

The reasons for the different feeding effect of dietary starch sources were elucidated from both digestive tract and portal-drained viscera absorpt...

试验1不同淀粉来源对生长猪生产性能、养分消化率及血液生化指标的影响选择45头体重20±0.642kg杜×长×大三元杂交猪，以玉米、早籼稻糙米、糯米和抗性淀粉(Hi-maize-1043)作为淀粉来源，配合4个等氮、等能、等淀粉试验日粮和1个无氮日粮，进行为期30天的饲养试验和5×5拉丁方代谢试验。

Photoautotrophic growth and mixotrophic growth in nitrogen-containing mediumwere better than those in nitrogen-free medium,respectively.

鱼腥藻7120在含氮培养基中的光自养生长和混合营养生长优于在无氮培养基中。

The research results showed that the growth of Nitrobacter always depended on the conversion of ammonia-nitrogen to nitrite-nitrogen by Nitrosomonas under both no aeration and aeration.

研究结果表明，在无曝气条件下和曝气条件下，填料上硝酸盐细菌的生长均依赖于亚硝酸盐细菌转化氨氮为亚硝酸盐氮的过程。

On the normotensive rat, bilateral microinjection of L-arginine (16 n mol/0.1 ul/site), a precursor of nitric oxide into the rVLM, caused a decrease in BP, HR and the pressor response induced by the dPAG stimulation, while microinjection of NG-methyl-Larginine (L-NMMA, 16 n mol/0.1 ul/site), a blockade for NO to form, into the rVLM bilaterally, caused an increase in BP, HR and the pressor response induced by the dPAG stimulation. There was no effect of both drugs mentioned above on the tachycardiac response induced by the dPAG stimulation.

五、在正常血压大鼠，于双侧rVLM微量注射一氧化氮前体(16nmol/0.1μl/site)可引起BP降低、HR减慢、以及电刺激dPAG诱发的防御性升压反应减弱；而于同区微量注射生成一氧化氮的拮抗剂N〓-甲基-L-精氨酸(16nmol/0.1μl/site)则可引起BP升高、HR加快、以及电刺激dPAG诱发的防御性升压反应增强；而上述两药对电刺激dPAG诱发的防御性加快心率反应均无明显作用。

In the liquid electrolyzing method, the solution of ammonia and oxydol were used as the reactants, and copper was used as the electrodes. Polynitrogen cluster N_(20) has been detected from the products.

在液相电解法中，以铜为电极，电解氨水和双氧水的混合溶液，反应6小时后，可以检测到产物中可能含有氮原子簇N_(20)的信号。6小时后，电流明显减小，产物中已无氮原子簇的信号。

The fractured surfaces and the structure of the resin binder links, which exist in nitrogen-free high-furfuryl-alcohol resin sand mixture and in high-nitrogen content low-furfuryl-alcohol resin sand mixture respectively are investigated by the aid of scanning electronic microscope.

本文通过扫描电镜分别对高糠醇无氮树脂砂和低糠醇高氮树脂砂断口的破裂形式，树脂膜组织结构进行了观察和研究。

Namely, with advancing growth stage, Changes of nutritional compositions in range and velocity for first-cut alfalfa were bigger than those for second-cut alfalfa.

不同茬次初花期的苜蓿养分比较结果为：第一茬苜蓿的消化率、粗蛋白、无氮浸出物含量显著高于后两茬(P＜0.05)，而在第二茬与第三茬之间无显著性差异(P＞0.05)；CF、NDF、ADF含量第二茬最高，第一茬和第三茬无显著性差异(P＞0.05)；CASh含量第一茬较高；各茬次中EE、Ca、P含量较小，变化不大。

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