查询词典 nitrogen

But after about a month to restore the root system, the leaves of nitrogen, phosphorus and potassium contents in treatment 5, 6, 7, 8, 2 gradually higher than the control. This is because the absorption of fertilizer during this period shown to promote on the elements, and with the passage of time the processing elements continue to be reduced to a leaf until the latter part of the growing season is also higher than the control.3.The pH value in rhizosphere soil of treatments poplar plantation were lower than that in non-rhizosphere soil, but the content of organic,available nitrogen, phosphorus, potassium, utility cuprum and utility zincum were all higher than those in non-rhizosphere soil.

但是经过大约一个月的根系恢复，处理5、处理6、处理7、处理8、处理2叶片中的N、P、K逐渐高于对照，这是因为施肥对元素的吸收在这一期间开始表现出了促进作用，并且随着时间的推移各处理中元素含量持续降低至落叶，直至后期的生长季节也高于对照。3、各处理的杨树林地根际土壤pH值均低于非根际土壤，而有机质、碱解氮、速效磷、速效钾、有效铜和有效锌的含量均高于非根际土壤，与其它处理相比，80cm两侧断根施肥处理的根际土和非根际土壤速效养分含量最高，差异达显著水平。

The prevention and countermeasure of Nitrogen Trichloride fire explosion were discussed from the fire explosion fatalness,the harm,the reason of forming and gathering in the chlorin and alkali producing of Nitrogen Trichloride in the article.

赵秋德，三氯化氮火灾爆炸防治对策研究从三氯化氮的火灾爆炸危险性，三氯化氮的危害，三氯化氮在氯碱生产中生成和富集原因等方面入手，论述了三氯化氮火灾爆炸事故的防治对策。

We drawed a conclusion that both aboveground and belowground soil carbon input were critical to soil available nitrogen concentration, but they showed no relation with soil nitrogen net mineralization rate.

我们的结论是：土壤地上地下碳输入是影响土壤有效氮库储量的重要因素，但与土壤氮净矿化速率没有直接联系。

The result form the principal component analysis of pollution factors by SPSS shows that the increasing of sulphur dioxide, nitrogen oxide compound and falling dust particles results in the decrease of the Total Suspended Particles, and the aggrandizing of nitrogen oxide compound and TSP leads to the reduction of falling dust particles.

并应用SPSS软件时公路污染因素进行主成分分析，得出了二氧化硫、氮氧化物和尘降的增加会相应导致TSP减少，氮氧化物和TSP的增加会导致尘降减少的结论。

The results indicated that COD,the contents of suspension,ammoniated nitrogen and nitrated nitrogen were much lower than those of mono...

结果表明，循环水养殖系统内虾池水层悬浮物数量、COD值、氨态氮和硝酸态氮含量比对照组对虾单养池明显降低(P·01)。

The results showed that low temperature, high content of salt and acidic condition inhibited ammonifiers growth, and alkalescent condition showed little effect on ammonifiers. Ammonifying bacteria in Suzhou Creek could not use inorganic nitrogen and carbamide as nitrogen source. Additional carbon source have little effect on ammonifiers growth....

结果表明，低温、高盐度和酸性条件会抑制氨化菌的生长；中、碱性条件下，氨化菌仍能维持正常生长；苏州河的氨化菌无法以无机氮和尿素作为生长所需的氮源；在氮源充足条件下添加额外碳源，对氨化菌的生长无抑制作用；苏州河的环境条件有利于氨化菌的生长。

Other compounds include the nitrides, exceptionally hard materials made from nitrogen and a metal; cyanides; azides, used in detonators and percussion caps; and thousands of organic compounds containing nitrogen in functional groups or in a linear or ring structure.

其它的化合物包括氮化物，是由氮和金属生成的异常坚硬的材料；氰化物；叠氮化物，用作引爆剂和雷管；还有数千种含氮的有机化合物，以功能团或者线性或环状结构的形式存在。

The principle of work for DCP system: Releasing the high pressured Nitrogen from Nitrogen Cylinder to Reduction Valve and decompresses the pressure to the work pressure, then transport them into Powder Tank, amount of them are transported to the bottom of the tank to relax the powder.

系统工作原理是：利用氮气瓶组内的高压氮气经减压阀减压后，使氮气进入干粉罐，其中一部分被送到罐的底部，起到松散干粉灭火剂的作用。

The present invention is characterized in that the ammonium metatungstate powders and the cobltic-nitrate powders are respectively dissolved in the water and scattered in the liquid nitrogen to be pre-frozen using a nitrogen spray gun after being mixed and defecated, and then are placed in a freezedryer to be dried vacuumly and finally the powders are obtained. The nanometer powder i.e. the nano tungsten-cobalt composite powder is obtained by reducing the freeze-dried mixed powder in the atmosphere of hydrogen.

该微晶硬质合金的制备方法特征为：将偏钨酸铵粉末与硝酸高钴粉末分别溶于水中，混合澄清后使用氮气喷枪，将其分散在液氮中预冻后置于冻干机中进行真空干燥得到粉末；在氢气气氛中对冻干的混合粉末进行还原得到纳米粉体，即钨钴纳米复合粉体。

Nitrogen alloying process was set up by theories of nitrogen dissolved and degassed in stainless steel refined in AOD.

李永中，赵利荣，AOD炉冶炼含氮不锈钢氮合金化工艺开发

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