研磨

This manual grinding found it difficult to guarantee that the uniform dispersion stability and cooling process to oxidation caused deterioration of the magnetic properties.

由此发现手工研磨难以保证分散的均匀稳定，冷却过程中易于氧化造成磁性能恶化。

Results show that the mean particle size values obtained from the above mentioned methods for as-supplied and lab-milled powders were misleading because of the defects of the measurement system or unsuitability of measurement theory.

结果表明：利用激光衍射法和FSSS法所测量出来的供给态粉和研磨态粉的粒度结果是错误的，这是因为测量系统的缺陷和测量原理的不合适导致的。

Silicon wafer used in IC of the world is over 90 percent.

硅片的研磨和抛光工艺和设备在IC制造过程中具有重要作用，是IC制造的关键技术。

Look upon money as water that runs the mill of your mind. You are constantly grinding out ideas that the world needs.

把钱看作是你思想中水磨的动力，通过它，你经常可以研磨出新的对世界有益的想法。

White pepper is made from the same berry, the outer husk being removed before grinding.

白胡椒是有同样的浆果先剔掉外壳经研磨而成。

Ceramic grinding head, resin cement, rubber cement, sponge round, wool grinding head, diamond grinding head, cutting, grinding December. sandpaper machine, sand sets Belt, Wheel, cloth round, wire cut and cut copper wire, nylon to cut, drill, Dental and polishing tools for health and beauty Wheel dedicated abrasive.

8A71 陶瓷磨头、树脂磨头、橡胶磨头、海棉轮，羊毛磨头，金刚石磨头，切割机，研磨腊，砂纸机，砂套，砂带，抛光轮，布轮，钢丝削，铜丝削，尼龙削，钻头，抛光工具以及齿科专用砂轮和美容保健专用磨具。

Worker bee larvae and honeybee pupae samples were treated with wet grinding to destroy cells and extract fat. Then the extract was esterificated by using KOH-CH3OH solution and determined by GC.

采用湿法研磨工蜂幼虫和蛹以破坏细胞和提取脂肪，提取液用氢氧化钾－甲醇进行甲脂化反应，上清液用于气相色谱分析。

The result indicated that manganese chloride,acetylacetone,sodium hydroxide,were grinded for 15 mins at room temperature with the molar ratio of 1∶4∶1.8,the yield of manganese ac...

结果表明：氯化锰、乙酰丙酮、固体NaOH按1∶4∶1.8的摩尔比，在室温下研磨15 min所得产率最高，产率为68%，比传统液相法的产率(25%)高出43%。

Chemiluminescent immunoassay is one of the advanced immunoassay ofnon-radioisotopic immunoassay because of its high sensitivity, wide dynamic range,high accuracy, stable labeled protein, full automation and extensive application field.CLIA using acridinium ester derivatives as chemiluminescent label has advantages oflow background, high signal-to-noise ratio, no need of catalyst and simpleluminescence system. Different aspects associating the DMAE·NHS-based CLIA were studied in thisthesis, including synthesis of acridinium ester, chemiluminescentcharacteristics of DMAE·NHS, labelling antibody or streptavidin with DMAE·NHS,two-site sandwich chemiluminescent immunoassay for TSH, two-sitesandwich chemiluminescent immunoassay involved biotin-streptavidinsystem for TSH, and competitive chemiluminescent immunoassay usingbiotin-streptavidin system for TT〓. The desired acridinium ester, DMAE·NHS, was synthesized according to thereference method with some modifications. The products were identified by IR, NMR,MS and elemental analysis. In our method, KOH was used in place of NaOH tosynthesize benzyl ester of 3,5-dimethyl-4-hydroxybenzoic acid,2',6'-dimethyl-4'-(n-succinimidyloxycarbonyl) phenyl-acridinium-9-carboxylate waspurified on a silica gel column with chloroform/ethylacetate(4:1, v/v) as eluent andfurther purified by triturating with hexane/acetone(2:1, v/v).

DMAE·NHS的合成是本论文的关键和难点，我们对文献方法进行改进：文献方法用氢氧化钠与3，5-二甲基-4-羟基苯甲酸反应制得3，5-二甲基-4-羟基苯甲酸钠，再用3，5-二甲基-4-羟基苯甲酸钠与苄氯作用制备3，5-二甲基-4-羟基苯甲酸苄酯，我们用氢氧化钾代替氢氧化钠，使合成取得成功；在合成2'，6'-二甲基-4'-苯基-吖啶-9-甲酸酯时，文献方法对粗产品进行两次硅胶柱层析纯化，第一次柱层析用氯仿／乙酸乙酯(4∶1，V∶V)作溶剂和淋洗剂，第二次柱层析用己烷／丙酮(2∶1，V∶V)作溶剂和淋洗剂，按照文献方法得到的不是所需要的化合物，我们只进行第一次柱层析纯化，然后用己烷／丙酮(2∶1，V∶V)进行研磨，过滤，洗涤，除去溶于己烷／丙酮(2∶1，V∶V)的部分，得到所需要的产品。

Process of flotation of acture ore is the following: firstly, adding Na_2CO_3, ZnSO_4, CSU-1 to the pulp while grinding, and thus in this condition of low Eh, marmatite is inhibited; Secondly, adding CSU-1 to the pulp out of grinding machine, then amesonite and iron sulfur mineral can be flotated using diethyldithiocarbamate as collector; High quality lead and antimony concentrate can be got by adding CSU-1 and calcareousness; Lastly, marmatite is flotated by adding calcareousness, CuSO_4, xanthe, and D-250 to get zinc concentrate.

小型试验研究表明，首先在脱硫粗选作业只加入适量的Na_2CO_3、ZnSOO_4、和CSU-1至磨矿机，利用磨矿机的研磨和磨机中的低电位环境，使铁闪锌矿受到抑制，而最容易浮的脆硫锑铅矿和黄铁矿、磁黄铁矿等硫化矿物则依然具有可浮性；在磨机出来的矿浆中分别加入CSU-1进一步抑制易浮的铁闪锌矿，然后加入乙硫氮将脆硫锑铅矿和硫化铁矿快速浮净，加入石灰和CSU-1，浮选分离出高质量的铅锑精矿；接着添加石灰、CuSO_4、黄药及2~#油选别铁闪锌矿。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！