查询词典 reagent

Especially the most commonly used methods,such as coupling reagent,surfactant and polymer coating methods were introduced in detail.On these basis,the problems existed were put forwarded and the necessity of interface compatibility improvement,the uniform dispersedness of nano-particles in base material and stability control were pointed out.At the same time,further research direction was also proposed.

未经表面处理的纳米TiO2颗粒表面还具有亲水性，不能很好地分散在有机基质中，这大大降低了超细颗粒的实际应用效果；同时在有机高分子树脂中难以均匀分散，界面上会出现空隙，当空气中的水分进入空隙中就会引起界面高聚物的降解、脆化，导致材料性能下降。

The floor of the vessel has a cavity (3) therein extending downwardly from the surface of the floor, and the lower end of the liquid reagent level sensor (2) and temperature sensor (1 and 11) are positioned in the cavity.

该器皿的底板具有设在其中并从底板的表面向下延伸的凹穴(3)，并且液体反应物液位传感器(2)和温度传感器(1，11)的下端位于该凹穴内。

So, it is necessary to choose a suitable dyestuff as a dyed-reagent for spun-dyed viscose.

因此，在还原染料应用于粘胶纺液着色加工时，必须先进行筛选。

In ChapterⅤ, the asymmetric reduction of prochiral ketones using borane as the reagent catalyzed by chiral dysprosium catalyst were described.

第五章主要研究了手性镝试剂催化下硼烷对潜手性酮的不对称还原反应，结果表明异丙氧基镝对硼烷还原酮有明显的催化作用。

Then we did the experiments of reagent selection and conditions of phosphorus removal by chemistry precipitation in the second effluence water.

随后对污水处理厂的二级出水进行了化学除磷药剂筛选试验和条件试验。

Quickly add the Test Preparation, mix, and again titrate with the Reagent to the electrometric or visual endpoint.

其中S是第二次滴定所消耗的卡尔试剂体积，单位ml；F是卡氏试剂与水的等价因子。

Allow sufficient time for the reaction to reach completion, and titrate the unconsumed Reagent with standardized Water Solution to the electrometric or visual endpoint.

给与足够的时间达到反应完全，用标准水溶液去滴定未反应的的卡尔试剂，以永停法或视觉观察终点。

Procedure— Where the individual monograph specifies that the water content is to be determined by Method Ib, transfer 35 to 40 mL of methanol or other suitable solvent to the titration vessel, and titrate with the Reagent to the electrometric or visual endpoint.

规程---当各论规定使用方法Ib测定水的含量时，转移35~40ml的甲醇或者其他合适的溶剂至滴定容器中，用卡尔试剂滴定，以永停法或视觉观察终点。

Procedure— Unless otherwise specified, transfer 35 to 40 mL of methanol or other suitable solvent to the titration vessel, and titrate with the Reagent to the electrometric or visual endpoint to consume any moisture that may be present.

操作---除另有规定外，转移35~40ml的甲醇或其他合适的溶剂至滴定容器中，以永停法或视觉指示终点，用卡尔试剂滴定可能存在的水汽（所消耗体积忽略不计，因为不会代入到公式计算），快速加入测试样本，混匀，然后再次用卡尔试剂滴定到终点。

I am saved at that time " examine immediately " basic characteristic is: 1Of.1POCT cover a range wide, the testing instrument model of same item amounts to 7~8 to plant. 1.2POCT all is placed in clinical the outpatient service of each division, emergency call and ward, the apparatus is almost entire by groom without POCT operation post already card, lack again examine the operation of the member that be not identifier of basic knowledge. 1.3POCT assures measure without quality, examine the specimen is collected, reagent is purchased and save all compare optional, be opposite extremely between the instrument experiment, do not have room endoplasm to accuse already at ordinary times, do not have again judge character between the room, examine quality is in nobody to run state. Of 1.4POCT detect result error is big, repeatability of partial instrument result is poor, the hospital examined 2002 3 hospitals selectived examination randomly in division quality assessment, 45 second large biochemistry appearance detects contrasting POCT blood sugar, its written guarantee...

当时我省"即时检验"的基本特征是：1.1POCT的覆盖面广，同一项目的检测仪器型号多达7~8种。1.2POCT均放置在临床各科的门诊、急诊和病房，仪器几乎全由既无POCT操作岗位培训证，又缺少检验基本知识的非检验人员操作。1.3POCT没有质量保证办法，检验标本采集、试剂采购和保存均比较随意，仪器间无比对试验，平时既无室内质控，又无室间质评，检验质量处于无人管理状态。1.4POCT的检测结果误差大，部分仪器结果重复性差，2002年医院检验科质量考核中随机抽查了3所医院，45例次有大型生化仪检测对照的POCT血糖，其结。。。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。