查询词典 M.A.

Methods An SE-30 capillary column (30 m × 0.25 mm × 0.25 μm) and a flame ionization detector were used when n dodecane was used as the internal standard.

采用 SE 30 (30 m×0.25 mm×0.25 μm)石英毛细管色谱柱，以正十二烷为内标，进样口温度210 ℃，检测器温度300 ℃的气相色谱测定百秋李醇含量。

The test device can eradiate the far-infrared rays between 4μm ~ 14μm in 47℃~80℃. After a series of contrast tests, it shows that the fuel consumption is remarkably decreased. The mean fuel consumption is decreased by 3.9% when the car is running on the limited road, or it's decreased by 8.6% when the car is running on the variable status road. Th...

经过一系列对比试验后表明，在47℃~80℃温度环境下发射的波长为4μm~14μm的远红外线对汽车燃油经济性有较显著的影响(汽油车在限定条件下的平均燃油消耗量减少3.9%；汽油车多工况燃油消耗量减少8.6%)，对其他性能也有一定的改善。

A vessel of accessible maximum LOA is 180 m and maximum draught is 9.5 m.

进出船舶允许的最大船长为180 m，并且最大船舶吃水为9.5 m。

With the initial glucose concentration varying within a range from 0 to 30 g/L,themaximal cell densities achieved in mixotrophic growth were able to be 3.4 folds and5.3 folds of those in photoautotrophic growth at light intensities of 160μE m-2 s-1 and16μE m-2 s-1,respectively.

葡萄糖浓度在0-30g/L范围内变化时，在光强160μE m-2 s-1和16μE m-2 s-1下，混合营养生长的最大细胞密度分别可以达到光自养生长的3.4倍和5.3倍。

Experimental results showed that the CuL complex had five-membered and six-membered rings containing two M—O,and one M—N bonds and that the ligand was of a multidentate one.

对其结构进行元素分析、摩尔电导率、紫外吸收光谱、红外吸收光谱、荧光光谱及电化学表征，结果表明，配合物同时含有2个M─O和1个M─N键形成的五元环和六元环，HL为多齿配体。

The resultant pellet was layered on a gradient composed of 1.2, 1.8 and 2 M sucrose layers in 50 mM Tris, 1% SDS and centrifuged at 106,000 g for 120 rain at 4 ° C. The material recovered at the 1.8-2 M interface was diluted in 0.1 M TRIS with 2% SDS and pelleted (106,000 g, 60 min).

由此产生的颗粒是层次上的梯度组成1.2 ， 1.8和2男蔗糖层50毫米的Tris ， 1 ％ SDS和离心在十点六万克120雨在4° C的材料回收在1.8 M界面稀释后在0.1米的招聘2％ SDS和包衣（十点六〇〇万克， 60分钟）。

In this paper, a series ofmodel compounds of PPV--M-PPVs were synthesized. All of the M-PPVscontained two bridge double bonds that connect the phenyl rings. The research ontheir photooxidative degradation of the M-PPVs including mechanism and kineticswas systemetically conducted.

本文设计合成了一系列含有两个桥双键的聚对苯撑乙烯的模型化合物，并对它们的光氧化降解反应与氧化机理进行了深入系统的研究，并探讨了M-PPV在不同微环境下的发光性质，主要结果如下：一。

For a futher research on the natural gas and minimizing the detector,we measured the spectrum lines which may affect the detection of CH4 near 1.65μm and 1.68 μm accurately by using the TDLAS theory.Then we set up an sinal acquiring and processing system based on LABVIEW,which can aquire and filter the digital signal and an interfix arithmetic is also used to get the final result.

本论文以近红外二极管激光吸收光谱技术为基础，在1.65μm和1.68μm附近对乙烷的谱线进行了准确测量，分析了乙烷谱线对甲烷测量的影响，编写了基于LabVIEW的数据采集及处理分析系统，利用该系统实现了对探测信号的采集、滤波以及对波形的相关运算并得出最终结果。

A film system which meets the standard of environment and rigidity was prepared. Besides, its average transmissivity attains to 98% at the range of 3μm～5μm.

最后得到的膜系满足环境稳定标准和强度标准，并且在3μm～5μm波段范围内的平均透过率可以达到98%。

A kind of M-TNF recombin ant with a stable,uncleavable mutant typewas constructed for its gene therap y. Methods: On the basis of cloning the M-TNF c D NA encoding region,the authors constructed mTNFm,which could potentially expre ss on the c ell surface with a uncleavable type of TNF resulting in deletion of the sequence encoding enzymatic cleavage site of TNF-α-converting enzyme.

近年来研究表明，T NF的两种形式在受体结合、生物学效应等方面各具特征［3，4］。M-TNF通过直接接触在组织局部中发挥效应的特性，有望克服S-TNF在生物治疗应用中引起的远端及全身性毒副作用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。