After nitriding, the abradability of the boring axis is increased greatly.

By experiment, we knew the nitriding deformation rule of joint bearing and improved the technology method.

通过实验, 掌握关节轴承氮化变形规律,改进了工艺方法,在提高零件精度和质量的同时,降低了生产成本.

The nitrogen fertilizer losses in paddy field involve nitrification-denitrification, ammonia volatilization nitrate leaching and runoff.

稻田中氮素损失途径主要有氨挥发、硝化 - 反硝化 、 淋洗和径流,其中氨挥发是氮素损失的主要途径.

The nitrification of the ammonium ion, however, results in the formation of an acid residue.

但铵离子的硝化会产生一种酸性残留物.

Nitrification is an important step to affect nitrogen removal in biological treatment processes.

生物脱氮系统中,硝化作用好坏是影响脱氮工艺效率的重要步骤.

A good correlation of ammonia removal efficiency, nitrification rate and TN removal efficiency was found.

氨氮去除率和硝化速率、总氮去除率具有较好的相关性.

Urea + nitrification inhibitor DMPP ( Entec 46 ), Urea + nitrification inhibitor DCD ( U + DCD ) and organic-inorganic fertilizer ( OIF ) decreased significantly nitrate content of rape.

尿素+硝化抑制剂DMPP ( Entec46 ) 、 尿素+硝化抑制剂DCD ( U+DCD ) 和有机无机复混肥 ( OIF ) 3种氮肥显著降低了油菜硝酸盐含量.

In sewage containing 30 % seawater, shortcut nitrification can be achieved at moderate temperature.

生活污水中海水比例为30%中温条件下可以实现短程硝化.

Understanding of the manufacture of sulfuric acid in two ways, contact the Law and nitrification.

了解制造硫酸的两种方法, 接触法和硝化法.

Ammonia can be transformed into nitrate that can be utilized by plant via nitrification.

氨经硝化作用转化成可被植物利用硝酸盐.

In addition , the effects of sorption and nitrification on NH 4 + N transformation and tr.

就吸附作用和硝化作用对铵态氮转化迁移规律的影响作了定量讨论.

The influence of nitrification efficiency with adding nitrifying bacteria to the activated sludge process was investigation.

研究了在活性污泥工艺中用投加硝化菌的方法提高硝化效率的特性.

The experiment demonstrated that it is feasible to start ANAMMOX reactor with nitrifying activated sludge.

反应器的成功启动表明,使用硝化细菌接种厌氧氨氧化反应器能实现快速启动.

New comparison parameter and new calculation methods of acrylic nitrile reactor carbon balance are established.

确定新的对比参数,建立了一种新的丙烯腈反应器碳平衡计算方法.

I purchase large factory waste nitrile gloves, demand for the color blue, non-PVCmanufacturers waste.

我厂求购大量废旧丁腈手套, 需求颜色为蓝色, 不含PVC的 厂家废料.

Lei-ring and general wear-resistant nitrile rubber by dipping the fabric from repression.

蕾形密封圈一般由丁腈橡胶和 耐磨 的浸胶织物压制而成.

Standard versions feature a nitrile double-lip seal and standard grease.

标准版本采用腈双密封唇和标准油脂.

The oxidation further enhances the physical properties of carbon black filled nitrile butadiene rubber ( NBR ) .

氧化后的碳黑进一步加强了 硝 基丁二烯橡胶的物理性能.

In this paper , the synthesis, grades , characteristics and applications of hydrogenated nitrile rubber ( HNBR ) are reviewed with 28 references.

综述了氢化丁腈橡胶的制备方法 、 种类 、 性能特点及其在工业中的应用.

Used Nitriles Plant and Process, complete Nitriles Plant and Process for re-location throughout the world.

二手腈纶装置和工艺, 成套腈纶装置和工艺可以在世界各地重新安装.

The analytic methods of nitrite in edible salt were described.

文章提出了食用盐中亚硝酸盐的测定方法.