The purity of tungsten is improved by leaching in NaOH solution.
通过进一步碱浸可提高钨粉的纯度。
Sisal fibre material managed by steam explosion and then NaOH pulping.
通过对剑麻纤维原料爆破法处理，继而进行烧碱法化学蒸煮。
The waste after mercerization produces an effluent containing 5% NaOH.
丝光后产生含碱量5％的废液。
Sisal fibre raw material managed by steam explosion and then NaOH pulping.
摘要通过对剑麻纤维原料爆破法处理，继而进行烧碱法化学蒸煮。
Sisal fibre raw material managed by steam explosion and then NaOH pulping.
处理，继而进行烧碱法化学蒸煮。
Cadion gives two distinct reduction waves in the medium of 0.32m NaOH solution.
镉试剂在0.32M氢氧化钠溶液中有清晰的还原波，峰电位在—o。
Using low concentration of NaOH brought convenience to the production operation.
由于采用低浓度的氢氧化钠，给生产操作带来了方便。
Thus it is possible to substitute NaOH semi chemical pulp with SCMP for Quercus.
因此以柞木为原料用SCMP制浆方法取代苛性钠法半化学浆是可行的。
Alkali: a soluble matter that forms hydroxyl ions in solution. e. g. NaOH or KOH.
碱：在溶液中可形成氢氧根离子的可溶性物质。例如氢氧化钠或氢氧化钾。
For used oil, you should do a titration to determine the correct amount of NaOH to use.
使用过的油需按要做滴定法来确定正确的氢氧化纳使用量。
Use 0.1M standard NaOH solution titrant to titrate the solution from red colour to orange.
用0.1M标准NaOH溶液滴定剂，滴定到溶液由红色变为橙色。
This is normal. Make sure ALL the NaOH (lye) is dissolved. This may take 10 minutes or more.
确认所有的氢氧化钠完全溶解在甲醇里，这个过程可能需要十分钟或者更长。
MgO whisker was prepared from MgSO4 and NaOH as low - cost sources by sintering of the precursor.
以价格低廉的硫酸镁和氢氧化钠为原料，通过前驱体烧结法制备氧化镁晶须。
The UF properties of PES C membrane could be recovered by the method of cleaning with NaOH Solution.
采用碱液清洗方法可以使膜的性能得到恢复。
The relation between the interface tension and the encapsulated phase NaOH concentration is discovered too.
还发现，内相中氢氧化钠的浓度对两相界面张力也有影响。
Silica white was prepared from laterite nickel ore by the method of molten NaOH-carbonization decomposition.
以红土镍矿为原料，采用碱熔融-碳酸化分解方法制备出白炭黑产品。
The main points are as follows: (1) a novel reaction system of molten NaOH and titanium slag was established.
主要研究内容和成果如下：(1)构建了氢氧化钠熔盐-高钛渣反应新体系。
The value of density of NaOH liquor is measured by CCD, and the quality fraction of NaOH liquor is got by table.
通过CCD读取碱溶液的密度值，查表获取碱溶液的质量分数。
The yield of ferrocene increases as the amount of DMSO or NaOH used increases, and tends to be constant gradually.
增大二甲基亚砜或氢氧化钠的用量都可使二茂铁产率提高并趋恒定。
There is 27.2% NaOH in the sample and a little NaCl by qualitative and quantative analysis, and the residual is water.
通过定性定量分析，该样品有高达27.2%的氢氧化钠及很少量的氯化钠，其余为水。
After ALL the NaOH has dissolved, top up to 250 ml with fresh methanol, as there may be some evaporation during mixing.
等氢氧化钠完全溶解后，倒入少量新鲜甲醇至250毫升，来弥补溶解过程中挥发掉的甲醇。
The results show that, microwave and ionic liquid had synergetic effect on transesterification when using NaOH as catalyst.
研究结果表明，用碱作催化剂时，微波和离子液体对绝缘油的制备有协同促进作用。
The dosage of NaOH, the size of wood thread, and the intensity of refining are the main factors effecting on the APMP pulping.
用碱量、木丝粗细和磨浆强度是影响apmp制浆的最主要因素。
Raw lacquer film was etched by aqueous solution of NaOH so as to simulate the corroded raw lacquer film on ancient lacquerwares.
用氢氧化钠水溶液对天然生漆漆膜进行腐蚀，以模拟已被腐蚀的古代漆器漆膜，再用硅酸乙酯对已被腐蚀的生漆膜进行化学修复。
The acid buffering capacity of birch veneer decreased by dyeing directly and increased by dyeing after pretreating with NaOH solution.
桦木单板直接染色酸缓冲容量减小，而预处理后染色则酸缓冲容量增大。
Through the study on the added amount of NaOH, reaction time and temperature, the optimum production process conditions were determined.
通过对氢氧化钠的加入量、应时间、应温度等生产条件的研究，得出了最佳生产工艺条件。
The effects of reaction temperature, reaction time and amount of NaOH on the degrees of substitution of products were discussed by orthogonal test.
通过正交实验，研究了氢氧化钠用量、反应温度和反应时间对取代度和反应效率的影响。
The process for preparing xylooligosaccharides from the powder of rice straw pretreated by NaCl, then soaked within NaOH was reported in this paper.
研究了稻草粉经氯化钠预处理后加氢氧化钠高温蒸煮提取木聚糖，然后再加酶水解生产低聚木糖的工艺路线。
Some growtk conditions of transparent iron oxide pigment in the solution of ferrous sulphate with NaOH and NH_4HCO_3 as precipitant were investigated.
对硫酸亚铁溶液用氢氧化钠和碳酸氢铵为沉定剂生成透明氧化铁颜料的条件进行了初步研究。
The influence of alkali's activation conditions, including baking method, alkalinity and NaOH/flyash mass ratio on synthetic zeolite was investigated.
讨论了碱活化粉煤灰的条件，包括焙烧方法、碱灰比和碱度对合成产物的影响。
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