查询词典 nitrogen

The H value was calculated to be 0.246 using Shannon-Wiener diversity index method.By aquatic reservoir evaluation criteria, combined with the type and density of zooplankton,it could be clearly determined that the water quality was seriously polluted and eutrophic.4.Comprehensive assessment of water quality:Affected by the influxion of sewage, slow flow velocity,high contents of nitrogen and phosphorus,the quantities of both zooplankton and phytoplankton at 1st point were relatively high,with the appearance of various indicator species of water pollution.

计算Shannon-Wiener多样性指数法得出H值为0.246，通过水库水生生物评价标准，结合浮游动物种类和密度，可以很清楚判定水质为污染严重，已经呈富营养化。4水质综合评价：排污口1号采样点受生活污水的大量排入的影响，且水流流速缓慢，水中氮磷含量高，因而浮游动物和浮游藻类数量都很高，而且出现很多污染生物指示种，综合分析该水层水质属污染严重的富营养化。

In addition, the total concentration of NO3- and NH4+ was smaller than the initial nitrogen content in the solution

同时，体系中检测到的NO3-和NH4+总浓度小于苯胺溶液中初始的氮含量。

Nitrogen is transparent, and innocuous at room temperature.

氮气在室温下是无色、无毒的。

The studies show that the optimum carbon source for this strain to producing flocculant is lactose and the nitrogen source are yeast cream and urea; the optimum pH is 6.0~8.0; the optimum inoculability capacity is about 1.0 %; the salts are 0.2 % K_2HPO_4 and 0.5 % KH_2PO_4; the optimum culture time is 3 days.

该菌的最佳培养基及最佳培养条件为：乳糖10g，KH_2PO_42g，K_2HPO_45g，NaCL0.1g，尿素0.5g，酵母膏0.5g，水1L，pH6～8，温度为30℃，摇床培养3d，代谢产物对高岭土悬液的絮凝率超过97%。

The application of rhizobia inoculant can drastically reduce the dose of chemical nitrogen fertilizer and decrease the environmental pollutions.

使用根瘤菌剂接种豆科作物可以大幅减少化学肥料的施用量，降低环境污染。

Nitrogen is the largest volume inorganic chemical sold in the world and has a multitude of commercial and technical applications.

氮是世界上销售量最大的无机化学品，有着广泛的商业和技术应用。

Nitrogen is the largest volume inorganic chemical sold in the world, supporting a multitude of commercial and technical applications.

氮是世界上销售量最大的无机化学品，有着广泛的商业和技术应用。

Uses用途 Nitrogen is the largest volume inorganic chemical sold in the world and has a multitude of commercial and technical applications.

gases。氮是世界上销售量最大的无机化学品，有着广泛的商业和技术应用。

Uses用途 Nitrogen is the largest volume inorganic chemical sold in the world, supporting a multitude of commercial and technical applications.

氮是世界上销售量最大的无机化学品，有着广泛的商业和技术应用。

Because a plenty of wastewater inpour into water directly,nitrogen and phosphorus accumulate incessantly in water,and a few of algal and hydrobios multiply excessively.

由于大量未经处理的污水直接进入水体，使得水体中氮磷营养物质不断积累，部分藻类及水生生物过度繁殖，最终导致了水体的富营养化。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。