查询词典 optically less dense medium

First is enhances the boiler the heat energy transfer rate,(1) changes the vertical chimney to the horizontal-type chimney, reduces the speed of flow, Increase the time which the actuating medium and the boiler hot flame doing heat change;(2) changes the high temperature system sole medium sole heat transfer area to many kinds of medium the multi-channel heat transfer area(2-6 medium, 2-6 heat transfer area, this article takes four medium, 4 heat transfer areas confer elaboration), the increase heat transfer flow path through many times heat absorption,Lets the pot furnace coal flame heat energy as far as possible much transmit gives the actuating medium, Enables the quantity transfer rate from the present 60%--75% enhances to is bigger than 95

第一是提高锅炉的热能转移率，（1）将立式烟囱改为卧式烟囱，降低流速，增加工作介质与锅炉热焰气的热交换时间；（2）将高温系统单一介质的单一换热区改为多种介质的多道换热区（2—6种介质， 2—6道换热区，本文取四种介质，4道换热区加予论述），增加换热流程，通过多次吸热，让工作介质尽可能多地把锅炉煤焰气的热能传递给工作介质，使能量转移率从现在的60%--75%提高到大于95

A human promyelocytic leukemia cell mutant (HL-60-AR) with deficiency in HGPRT and resistance to 8-AG was established by treat〓nt of the HL-60 cells with MNNG and prescreened in 0.3% agar RPMI-1640 semisolid medium containing 8-AG. The mutant cells show the following characteristics:(1) resistant to cytotoxic action of 8-AG and growing vigorously in medium containing 20ug/ml 8-AG;(2) capable of forming 〓〓 colonies in soft agar medium in the presenee of 8-AG:(3) highly sensitive to HAT selective medium and fail to growing in HAT medium of form colonies in soft agar medium containing HAT;(4) completely deficinet in HGPRT activity; and (5) no radioactive silver grains over the mutant cells due to the absence of -hypoxanthine incorporation showed by radioautography.

一、用MNNG诱变和8-AG进行抗性筛选，成功地建立了一株抗高浓度8-AG和完全缺失HGPRT活性的人早幼粒白血病细胞突变株(HL-60-AR)，该细胞能抵抗8-AG的毒性作用，对HAT选择培养基十分敏感，检测不到HGHRT活性，不能参入〓H一次黄嘌呤。

The BMSCs were divided into six groups after repeatedly passaged: A,the BMSCs were cultured with conventional culture fluid(DMEM culture fluid+20%fetal bovine serum+2 mmol/L aminoglutaric acid amine) all the time;B,the BMSCs were cultured with conventional culture fluid+HGF(25ng/ml)+dexamethasone10~(-7M;C(HGF and Zuoguiwan induced group), the BMSCs were cultured with conventional culture fluid+ HGF(25ng/ml)+ dexamethasone10~(-7M+ 10%Zuoguiwan drug serum;D(conditioned medium and contrast serum induced group), the BMSCs were cultured with conventional culture fluid+50 % conditioned medium+10 % normal rat serum;E(conditioned medium and Bazhentang drug serum induced group), the BMSCs were cultured with conventional culture fluid+50 % conditioned medium+10 % Bazhentang drug serum;F(conditioned medium and Zuoguiwan drug serum induced group), the BMSCs were cultured with conventional culture fluid+50 % conditioned medium+10% Zuoguiwan drug serum.

常规培养组始终使用常规培养液(DMEM培养液+体积分数20％胎牛血清+2mmol／L谷氨酸胺)进行培养；HGF诱导组以常规培养液+促肝细胞生长因子(HGF，25ng／ml)和地塞米松10~(-7M进行培养；HGF加左归丸组以常规培养液+促肝细胞生长因子(HGF，25ng／ml)和地塞米松10~(-7／M+10％的左归丸含药血清进行培养；条件培养液加对照血清组以常规培养液+50％的条件培养液+10％正常大鼠血清进行培养；条件培养液加八珍汤组以常规培养液+50％的条件培养液+10％八珍汤含药血清进行培养；条件培养液加左归丸组以常规培养液+50％的条件培养液+10％左归丸含药血清进行培养。

The hFCECs were cultured by sticking tissues piece method that the cornea were divided into the limbus and central tissue piece and digestive method,respectively.For digestive method,the digestive juice of 5mg/ml DispaseⅡ+0.25%trypsin was chosed.D/F12 with 10%fetal bovine serum and 100 U/ml penicillin and streptomycin were used in this study,the culture condition was 37℃and 5%CO2,and culture medium changed every three days2、Passage of hFCECsAfter more than 80%confluenced,cells from corneal limbus hFCECs were digested for 5-15min with different concentrations of trypsin/EDTA at 37℃,and then passaged at a ratio of 1:2.The cells were subcultured on empty plates,mouse 3T3 fibroblast feeder layer,fetal corneal stromal cell feeder l ayer or HTK feeder layer respectively.And D/F12, mouse 3T3 fibroblast conditioned medium,fetal corneal stromal cells conditioned medium or HTK conditioned medium with 10%FBS and 100 U/ml penicillin and streptomycin were used respectively as the culture medium.And the culture medium were changed every three days as well.

方法一、人胎儿角膜上皮原代和传代培养1、原代培养严格无菌操作获取人胎儿角膜片，采用组织块贴壁法、酶消化法原代培养人胎儿角膜上皮细胞。2、传代培养角膜缘部的细胞生长融合达80%以上，不同稀释浓度的胰酶/EDTA消化液消化传代分别接种于空板、小鼠3T3成纤维细胞饲养层、胎儿角膜基质细胞饲养层及HTK饲养层，培养液分别采用D/F12、小鼠3T3成纤维细胞条件培养液、胎儿角膜基质细胞条件培养液、HTK条件培养液。

The conveyed medium can't be leaked outside. Thus it will not cause the environmental pollution and human body safety dangerous while exhausting the toxin and flammable or corrosive medium. 5、No electricity. It's safe and reliable while using in the flammable and explore places. 6、It can be soaked in medium. 7、It's convenient to use and reliable to work. Only open or close the gas valve body while starting or stopping. Even if no medium operation or pausing suddenly for long time because of accident matters, the pump will not be damaged caused by this. Once over-loading, the pump will automatically stop and possesses the self-protection function. When the load recovers normally, it also can start automation. 8、Simple structure and less wearing parts. This pump is simple in structure, installation and maintenance. The medium conveyed by the pump will not touch the matched pneumatic valve and coupling lever etc. not like other kinds pumps, the performance will drop down gradually because of the damages of rotor, gear and vane etc. 9、It can transmit the adhesive liquid (the viscosity is below 10000centipoise) 10、 This pump needn't the oil lubricant. Even if idling, it has any influence to the pump. This is a characteristic of this pump.

所以抽送有毒、易挥发或腐蚀性介质时，不会造成环境污染和危害人身安全； 5、不必用电，在易燃、易爆场所使用安全可靠 6、可以浸没在介质中工作 7、使用方便、工作可靠、开停只需简单地打开和关闭气体阀门，即使由于意外情况而长时间无介质运行或突然停机，泵也不会因此而损坏，一旦超负荷，泵会自动地停机，具有自我保护性能，当负荷恢复正常后，又能自动启动运行； 8、结构简单、易损件少，该泵结构简单，安装、维修方便，泵输送的介质不会接触到配气阀，联杆等运动部件，不像其他类型的泵因转子、活塞、齿轮、叶片等部件的磨损而使性能逐步下降； 9、可输送较粘的液体（粘度在1万博以下）； 10、本泵无须用油润滑，即使空转，对泵也无任何影响，这是该泵一大特点

Hydroxynitrilelyase, a vital tool in the bio-synthesis of optically active cyanohydrin, which can catalyze carbonyls and HCN selective forming optically active cyanohydrin.

醇腈酶(α-hydroxynitrilelyase， HNL)是手性醇腈化合物生物合成十分有用的工具，能够催化羰基化合物和HCN立体选择性的加工形成手性醇腈化合物。

Optically active 3-bromo-2-butanol is treated with KOH in methyl alcohol to obtain an optically inactive product having the formula .

答：有旋光性的3-溴-2-丁醇经过KOH的醇溶液得到一无旋光性的产物，写出该物质的结构

A radiant energy path means comprising a first optical fiber waveguide means and a second optical fiber waveguide means; sensing means prismatically configurated so as to provide a direct reflective path from said first waveguide means, through said sensing means, to said second waveguide means, said sensing means being fabricated from material which absorbs a portion of a monochromatic radiant energy transmitted along said direct reflective path through said sensing means as a function of temperature; a monochromatic radiant energy source means optically coupled to said first optical fiber waveguide means, thereby introducing said monochromatic radiant energy into said first optical fiber waveguide means; and detecting means optically coupled to said second optical fiber waveguide means for detecting the intensity of the monochromatic radiant energy transmitted along said direct reflective path through said sensing means, the detecting means correlating the intensity of the transmitted monochromatic radiant energy with the temperature of the sensing means.

温度传感器组成一个联合：辐射能走了一首手段包括光纤波导手段和光纤波导第二手段；硒干旱prismatically手段配置以提供直接从反光路波导首次表示，次传感手段粗糙说，第二说波导手段飒传感手段伪造身份证从物质吸收了部分单色辐射能直接传送沿线说重 flective路径通过说温度传感功能为手段；一单色辐射能来源地说，就是先光光纤耦合波导手段次 ereby介绍说，首先说成单色辐射能光纤波导手段；一丁光学检测手段波导光纤耦合说二是加大检测手段的单色辐射恩顺沿说传染途径通过直接反光说传感手段，次五是加大检测手段的传播相关单色辐射能与温度传感手段。

The stainless steel contains an Ag-Cu binary master alloy with a weight percentage of 0.10 to 4.0 percent and the weight percentage for the rest chemical components are as follows: C less than or equal to 0.08 percent, Si less than or equal to 1.0 percent, Mn less than or equal to 2.0 percent, P less than or equal to 0.04 percent, S less than or equal to 0.03 percent, Ni 7.0 to 15.0 percent, Cr 17.0 to 20.0 percent, Mo less than or equal to 4.0 percent, N less than or equal to 0.15 percent and the rest are Fe and unavoidable impurities.

本发明公开了一种奥氏体抗菌不锈钢及其制造方法，所述不锈钢含有重量百分比为0.10～4.0％的Ag-Cu二元中间合金，其余化学成分重量百分比为：C：≤0.08，Si：≤1.0，Mn：≤2.0，P：≤0.04，S：≤0.03，Ni：7.0～15.0，Cr：17.0～20.0，Mo：≤4.0，N：≤0.15，其余为Fe和不可避免的杂质。

It was estimated pulp properties with Runkel ratio more than 1 would be harder in tension for fiber and less oriented fiber to make paper into fluffiness (Casey,1980), with flexibility coefficient less than 0.5, the paper had medium tensile strength, burst strength and folding endurance, with slenderness ratio no less than 75 that be the paper of medium tearing strength but suitable beating with per cent of wall fraction less than 40 per cent would be good paper (Rydholm, 1967) while fibers completely oriented to get higher tensile and burst strength.

牙髓腔的财产据估计超过1比率将难以在紧张、纤维少使纸纤维成蓬松型、弹性系数低于0.5，该报中等抗拉强度、爆裂强度和耐折、与细比不少于75文件中被撕裂，但适当强度击打元墙上分数占不到40%将好的文件(rydholm， 1967)而获得较高的完全纤维拉伸强度和爆裂。

Use nationalization degree and the relationship that commercialize degree, condition of calculable market economy plays scope of optimal and state-owned economy.

利用国有化程度与市场化程度的关系，可计算市场经济条件下最佳国有经济规模。

The kinds of extractant also effected desulfurization rate .

萃取剂对脱硫率的影响也很大，乙二胺的萃取效果优于甲醇的。