查询词典 nitrate

Denitrifying bacteria such as Pseudomonas, Micrococcus, and Clostridium use nitrate as the terminal electron acceptor in anaerobic respiration.

反硝化细菌有假单胞菌，微球菌以及梭菌。它们在厌氧呼吸中都能使用硝酸盐作为最终电子受体。

In the range of the C/N ratio of 1～14, nitrate reduction mainly occurred in the growth phase of the 4～10 hour and there was minim nitrite accumulation in the process.

当C/N在1～14之间变化时，硝酸盐还原基本都发生在菌株生长的第4～10h，整个反硝化过程中亚硝酸盐浓度一直保持在极低的水平。

My mother was lost in thought, looking at the arid plaincalcinated by nitrate that began at the mudhole of the port and merged with the horizon.

我妈坐在车上看着外面被盐碱化的干涸的平原，它从港口边的小镇一直延伸与地平线相接。

Against the AN properties of easy decomposability and polymorphic form, some operation and safety countermeasures are presented in its mixing, granulation and drying; Also by the slow combustibility of compound fertilizer based on ammonium nitrate, muriate of potash and monoammonium phosphate, the 3 portions of 2:2:1, 1:3:2 and 2:1:1 [m:m(P2O5):m(K2O)] are safe formulae.

根据硝酸铵易分解，多晶型的特性，阐述配料，造粒，干燥中的控制要点及安全措施；并根据硝酸铵，氯化钾，磷酸一铵为基础的氮，磷，钾复肥的缓慢燃烧特性，提出m：m(P2O5)：m(K2O)=2：2：1，1：3：2，2：1：1 均属安全配料范围。

The present invention adopts the technical proposal of adopting ZSM-5 mesoporous molecular sieve raw powder with a silicon-aluminum mol ratio SiO2Al2O3 of 20 to 1000 and a weight percentage of 20 to 100 percent as well as at least one caking agent selected from SiO2, clay and Al2O3 to extrude, tablet or spray into shape; then treating for 1 to 8 hours by 0.1 to 3 mol/l of at least one ammonium liquor from ammonium nitrate, ammonium chloride or ammonium sulphate or 0.1 to 8.5 mol/l of at least one acid liquor from muriatic acid, nitric acid, vitriol or acetic acid under a temperature of 20 to 90 DEG C; then using steam to treat for 2 to 15 hours under the temperature condition of 400 to 700 DEG C; using a liquor of 0.1 to 3mol/l selected from at least one of oxalic acid, citric acid or maleic acid under a temperature condition of 20 to 90 DEG C to dip for 2 to 5 hours to obtain the modified molecular sieve catalyst, thus better solving the problems.

本发明通过采用硅铝比SiO2/Al2O3为20～1000重量百分比计20～100％的ZSM-5介孔分子筛原粉与余量的选自SiO2、粘土或Al2O3中至少一种粘结剂挤条、压片或喷球成型；再经过0.1～3摩尔/升选自硝酸铵、氯化铵或硫酸铵中的至少一种铵溶液或0.1～8.5摩尔/升选自盐酸、硝酸、硫酸或乙酸中的至少一种酸溶液在温度20～90℃下处理1～8小时；然后在温度为400～700℃条件下水蒸汽处理2～15小时；再用0.1～3摩尔/升选自草酸、柠檬酸或马来酸中至少一种在温度为20～90℃条件下浸渍2～5小时得所需改性分子筛催化剂的技术方案较好地解决了该问题，可用于甲醇转化制丙烯的工业生产中。

The preparation procedure is as following: purification and assay for purity of neptunium, preparation of neptunium nitrate solution, making solution for ageing, subpacking the solution to ampoules, fire sealing, weighing for earch ampoule, homogeneity test, stability test, and certification.

以工厂的氧化镎作原料，经原料提纯→纯度鉴定→配成硝酸溶液→放置陈化→分装→火封→称重→均匀性检验→稳定性检验，最后进行定值。

One of our client is interested in Nickle carbonate and Nickle nitrate.

我们有一个客户对NiCO3和Ni(NO3)2感兴趣。

Cyrus Harding still needed, in view of his futurepreparation, another substance, nitrate of potash, which is better knownunder the name of salt niter, or of saltpeter.

为了将来的工作着想，赛勒斯·史密斯还需要另外一样东西，那就是硝酸钾，通常叫做硝盐，也叫硝石盐。

In this way, a new method for nitrate removal in water was established.

本研究为地下饮用水中硝酸盐的去除提供了一个新的技术路线。

Nitrate is one of the main pollutants in water.

硝酸盐氮是水体中的主要污染物之一。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。