查询词典 nitrogen fixation

The characteristics of nitrogen fixation, ammonification , nitrification and denitrification in coastal zones;2. Study on ammonification rate and slow release performance of urea;3. The results indicate that, with HRT of 8?h and temperature of 35℃, the COD removal rate is beyond 80%, the removal rate of TN about 8%, the ammonification rate of organic nitrat.

试验表明：厌氧附着膜膨胀床反应器处理乳品废水，在水力停留时间为8h、中温35℃条件下，COD去处率达到80%以上，对总氮的去除约为8%，出水有机氮的氨化率达70%以上，ρ/ρ由进水的0 5提高到0 8以上。

The study adopted a way of potted plant experiment combined with assaying to investigate effect of chitosan on system of commensal nitrogen-fixation.

本研究采用盆栽实验和实验分析相结合的方法，观察壳聚糖对蚕豆共生固氮体系的影响。

According to the chemical metallurgy principle of self-shielded weld and the analysis on the deoxidization and nitrogen fixation of the metal such as aluminium, titanium,and etc.

根据自保护焊接化学冶金原理，分析了铝、钛等金属对脱氧和固氮的作用，研究了适合自保护焊接合理的焊缝金属化学成

Forexample, the group 2, 4 and 10 of BOX-PCR were good agreement with group 5, 13 and12 of numerical analysis, and the group 3, 4 and 8 of RAPD were equal to group 6, 12and 8 of numerical analysis, and the group 5, 6 and 8 were identical with group 6, 12 and8 of numerical analysis, which indicated the 4 methods used could reveal the biodiversityamong the tested free-living nitrogen fixation strains.

总的来说，本研究所采用的表型分群和遗传型分群的结果在总体趋势上是一致的，BOX-PCR的群2、4和10分别与数值分类中的第5、13和12表观群一致；RAPD的群3、4和8分别与数值分类的群6、12和8相对应，16S rRNA PCR-RFLP中的群5、6和8则数值分类的群6、12和10完全吻合，说明本实验所获得的研究结果可信。

In 1975 Dbereiner experimentally found the associative symbiotic nitrogen-fixation bacteria associated with graminaceous plant and put forward the concept of rhizosphere associated NF.

1975年，Dbereiner实验发现与禾本科植物联合共生的固氮菌并提出根际联合固氮的概念。

Although they do not heterocyst, but also found that some species are nitrogen fixation, such as the red light ball algae.

虽然它们没有异形胞，但也发现有的种类有固氮作用，如淡红色球藻类。

The pot experiment indicated that different strains symbiotic nitrogen fixation efficiency and the ammonium molybdate concentration were related.

盆栽试验表明，不同菌株共生固氮的有效性与钼酸铵浓度相关。

The biological nitrogen fixation is a global strategic problem, and is very significant to environment, food and population and so on.

生物固氮是一个全球性的战略课题，它对环境、粮食、人口等问题有着重要意义。

Plants have been genetically adjusted to perform nitrogen fixation and to produce their own pesticide s.

植物已有基因上的调整，以进行固氮，并产生自己的杀虫剂。

Plants have been genetically adjusted to perform nitrogen fixation and to produce their own pesticides.

植物已有基因上的调整，以进行固氮，并产生自己的杀虫剂。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。