查询词典 h.a.

Mo0.85Nb0.15Si2 single crystal was then prepared by using optical floating zone melting method at a rate of 4mm/h.

以电弧熔炼得到的合金为母合金，通过光学悬浮区域熔炼法，选择适当的生长速度4 mm/h制备了(Mo0.85Nb0.15)Si2单晶，单晶结构为C40结构。

In order to obtain highly efficient H_2-producing aciduric anaerobic strain, a hydrogen producing strain H-8 was irradiated by microwave, the microwave mutagenesis parameters were optimized, and the genetic stability, hydrogen-producing potential and acid resistance of the mutant were investigated.

为获得厌氧产氢菌的高效突变株，以产氢菌H-8为原始菌株进行微波诱变处理，对微波诱变参数进行了优化，考察了突变株的遗传稳定性、产氢特性及耐酸性。

The adsorptions of SiH_2, SiH_2 with a hydrogen adatom (SiH_2+H) and SiH_2 with two hydrogen adatoms (SiH_2+2H) on the Si (100) surface near SDV structure have been calculated. Three possible sites are found in each case, and the presenting of hydrogen may reverse the relative stability of these sites.

本文首先计算分析了SiH_2、SiH_2+H和SiH_2+2H等硅烷分解后的产物在硅表面的吸附特性，我们发现每种情况都有三个可能吸附的位置，并且表面附着氢原子的出现可以造成这些吸附位置相对稳定性的逆转。

A new type of agglomerative flux for high speed submerged arc welding is developed,its welding speed can reach 80 m/h or even higher.

研制了一种新型的焊速可大于80m/h的高速埋弧焊烧结焊剂，并介绍了这种焊剂的性能。

This paper introduces the realization method of a UWB antipodal modulation generator with LCR to be driven by H bridge circuit of high speed MOSFETS.

而用高速 MOSFET管构成的 H桥电路驱动大电流辐射天线可产生超宽带脉冲信号，并能完成信息的正反调制，对电路用 Pspice8。

Methods: Apinoid wistar white rats ,quality standard was about 200 ? 30 gram (belong to SPF animal in experimental animal center ,FMMU)were randomly divided into experimental group and control group.Experimental group was gived hypodermic injection at a dose of 0.3ml/100g by 60 percent carbon tetrachloride olive solution every four days and drinked 50ml/L ethyl alcohol. we would divide course of cirrhotic rats models into three stages : early stage (the 25th day) is fatty degenerationnecrosis ;middle stage (the 45th day) is proliferation of fibrous tissue ; advanced stage (the 65th day) is formation of pseudolobuli .

实验方法：h级Wistar大鼠，质量在200士309之间（第四军医大学实验动物中心 SPF动物人随机分为实验组门 8只）和对照组只人实验组用 60％四氯化碳橄榄油溶液按 0.3ml／100g体重皮下注射，每四大一次，饮用5％乙醇，参照韩德五等将肝硬变大鼠模型分期，人为地将肝硬变大鼠病程分为H期：早期（第25大）脂变坏死期；中期（第45天）纤维增生期；晚期（第65天）假小叶形成期。

The hemolytic ability and bacteriolytic ability of serum improved evidently over the control group,preserved at a high level until 96 h after injection.

血清的溶血能力、溶菌能力与对照组相比有明显提高，一直维持到96 h仍具较高水平。

A three-dimensional large pore zeolite Hβ is used in the benzoylation of anisole instead of the classical Lewis acid catalysts to synthesize the important fine chemical intermediate 4-methoxybenzophenone.

采用高硅铝比、热稳定性好的三维大孔Hβ沸石替代传统Lewis酸催化剂催化苯甲醚的苯甲酰化反应，合成了重要精细化工中间体4-甲氧基二苯甲酮，收率可达92%。

A series of novel chiral aminophosphine ligands with binaphthyl backbone and partially reduced binaphthyl backbone were synthesized from optically pure NOBIN and H〓-NOBIN respectively. The effects of binaphthyl backbone and substitutes at the phosphorous atom on Pd (0)-catalyzed allylation of racemic 1, 3-dipheylprop-2-en-1-yl acetate with dimethyl malonate were systematically investigated.

从NOBIN出发合成了一系列膦上含有不同取代基的氮膦配体MAPs以及含有被部分还原的联萘骨架的氮膦配体H〓-MAPs，将此两类配体运用于钯催化的乙酸1，3-二苯基烯丙基酯与丙二酸二甲酯的反应中，考查了膦上取代基和配体骨架对反应的影响。

In model plant Arabidopsis thaliana, also from Brassicaceae, the TRANSPARENT TESTA 12 (TT12, AtTT12) gene is seed coat-specific and encodes a vacuolar flavonoid/H+ antiporter, transporting cytoplasm-synthesized glycosylated flavan-3-ols to the vacuoles for further polymerization into seed coat pigments.

同属十字花科的模式植物拟南芥中，种皮特异表达的TT12（透明种皮12，AtTT12）基因编码一种液泡型类黄酮/H+-逆向转运蛋白，将胞浆内合成的糖苷化的黄烷-3-醇转运到液泡中，供进一步聚合形成种皮色素。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。