查询词典 pregnancy rate

Most of these peptides are amidated at their C-terminals, which is essential for their full activities. The a-amide comes from posttranslational modification that is catalyzed by α-amidase (α-AE or PAM). The amidation reaction is a rate-limiting step in the biosynthesis of regulatory peptides.

大部分活性肽的C-端是酰胺化的，而且α-酰胺基为多肽的完全生物活性所必需；α-酰胺基来自多肽的翻译后加工，由α-酰胺化酶催化完成，是酰胺化多肽生物合成途径中的限述步骤。

In order to figure out the use of compression in the wood preservation aspect, the authors compared the compressed wood samples pretreated with hot water bath or water spraying and compressed preservative-treated wood, which was treated with ammine copper quat-type D preservative solution. The liquid absorption and recovery rate of compression deformation of the compressed wood were determined, as well as the surface hardness, distribution of density and CuO retention in the thickness direction of CPW.

摘要为研究压缩处理在木材防腐方面的应用，该研究测定了经过不同水浴和喷水预处理后的径向压缩木材在胺溶铜季铵盐--D型防腐剂中浸泡后的吸液量和变形回复率，并测定了由此制备得到的压缩防腐木的表面硬度、厚度方向上的密度分布和CuO保持量分布情况。

The results indicate that the concentration of ammonia has a remarkable influence on nitrification rate.

结果表明，氨氮浓度对硝化速率有显著的影响。

When the role ratio was high, and the osmosis preferable, the removal rate of total phosphor, ammoniac nitrogen, and chemical oxygen demand were high, and reduced with the prolonged time.

当基质渗透性较好、孔隙率较高时，污水总磷、氨氮、以及化学需氧量去除率较高；随时间延长，各指标去除率降低，其中总磷去除率与时间有较好的线性相关。

NO3-N is the most popular and safest nitrogen source to Spirulina, the suitable concentration is about 11mmol/L, which can speed the growth rate and reduce the cost of cultivation as well. NH4-N of the suitable concentration can enhance the growth of Spirulina,but overhigh concentration will cause the ammoniac toxicosis, the suitable concentration of NH4-N is about 1.27～2.57mmol/L.

NO3-N对螺旋藻是最为通用和安全的氮源，但添加浓度以11mmol/L左右最为适宜，既可满足藻体的最佳生长需求又可降低养殖成本；适宜浓度的NH4-N可促进螺旋藻的生长，浓度过高则会造成NH3中毒，NH4-N的添加量以1.27～2.57mmol/L范围最为适宜。

Six kind of bacteria were isolated from the mixture, and it was approved is that when the temperature was 30~35 oC ,pH was 8.0,DO＜1.2mg/L,the condition was adapted to Nitrosomas and the rate of remove about ammoniate was more than 80%.

得出在温度为30-35oC， pH值为8.0，DO＜1.2mg/L的条件下，最适合混培物的生长，氨氮的去除率可达80%以上，从而有效地降低抑制作用，使得后续反硝化能够顺利进行。

The experimental result proves that the rate of net increase is just between 90 % and 196 % after ammoniation.

试验结果表明氨化完成后，NH_3-N净增加率在90%—196%之间。

The results show that caramel produced by liquefaction of high temperature, saccharification of low temperature and ammoniation of ammonium sulfate has excellent colour rate and high p roduction efficiency.

本文就是对采用甘薯淀粉生产焦糖色素的工艺进行研究，用正交实验法确定了在高温液化、低温糖化和硫酸铵氨化的条件下生产出的焦糖色素色率好、收率高。

In comparison, the period of aerobic ammoniation is shorter and NH3-N peak value is lower (the rate of net increase can reach 33 % only).

厌氧氨化时间较长，氨化彻底，NH_3-N峰值高(净增率可达196%)，而好氧氨化时间短，峰值低(净增率仅33%)。

Through the test,the optimal hydraulic retention time was found to be within 6h～8h,NH3-N increasing rate,within 90%~96%,and a new phenomenon of anaerobic ammoniation was found.

采用ABR工艺对肉类加工废水进行前期氨化处理，通过试验得到最佳水力停留时间为6～8h，氨氮递增率在90%～196%之间；同时发现了厌氧氨氧化这一新现象；最后对氮素、pH等水质指标在氨化反应过程中的的转化规律进行了分析，以期为肉类加工废水的生物脱氮处理工艺提供一定的理论指导。

The legal sale of hashish on this day could also be a contributory factor.

开始的这一天，买卖大麻被视为合法行为，这可能也是导致该节日疯狂的原因之一。

There are strict lack fidelities in China's listed company, it not only harm the profit of small and middle investor and creditor and also decrease arrangement efficacy of resource.

我国上市公司会计信息严重失真，不仅损害了中小投资人、债权人的利益，而且降低了资源的配置效率。