定向

In order to increase directivity and efficiency ,the optimum culture medium components were made certain according to breeding methods.

为了提高筛选的定向性和效率，根据育种思路确定了最佳培养基的配方。

So, the chief role for designing the directional coupler is to increase its directivity.

因此，提高方向性就成了定向耦合器设计的主要任务。

Simulation results show that this antenna can broaden the practical bandwidth for both higher directivity and impedance matching.

仿真结果显示这种改进增宽了此类天线兼顾高定向性和阻抗匹配的实用频带。

RESULTSdiabetic rats showed typical symptoms involving elevated serum glucose and weight loss (2)The rats in DM+VaD group reacted slower and made more error numbers in Y-maze than the rats in VaD group did, with a prolonged total reacting time in a whole day.(3)More neurons with serious damages, such as edema, ischemia or pyknosis could be found in DM+VaD group than in VaD group. More disarrangement of cone neurons, obvious glia proliferation, and more neuron apoptosis were found in CA area of hippocampus. CONCLUSIONS (1)2-VO in STZ-induced diabetic rats succeeded in establishing VaD animal models.(2) The cognitive dysfunction induced by VaD rats had been deteriorated by diabetes mellitus.(3)Morphology evidences proved that diabetes mellitus aggravated brain damages induced by VaD.PART II Effect of diabetes mellitus on the cholinergic nervous systemin CA1 area of hippocampus of VaDOBJECTIVE To estimate the role of cholinergic nervous system in hippocampus during the process of cognitive dysfunction aggravated by diabetes mellitus in DM+VaD group. METHODS Observe the changes of ChAT protein by immunohistochemistry stain. Chose three rats randomly from each group at each pointat two week, four week, and eight week, then sepa

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Pre-interventionresearches show that attribution to effort is positively effective for both winnerand loser,keeping individual's higher expectation of success and enforcingpersistent behavior during competition break.Whereas,positive effects ofattribution to ability and luck are limited.They have effects on expectation ofsuccess,which changes disparately to success and failure.

前干预研究表明：在直接的归因定向中，努力归因无论对成功者还是失败者都具有十分积极的效应，不仅能够促使个体保持较高的成功期望水平，而且可以增强竞赛间歇的坚持行为；而能力与运气归因则不然，它们的积极作用十分有限，仅仅表现在对成功期望的影响上，并将视成功还是失败发生迥然不同的变化。

Small aperture array ; wideband distortionless beamforming ; direction of arrival estimation ; multiple sources

小孔径基阵；宽带无失真波束形成；定向；多个声源

We disused the scores of explicit values factors into two parts.

内隐价值观的作用机制是积极定向的。

Power dividers and directional couplers are passive devices used in the field of radio technology.

功率分频器和定向耦合器是无源器件在外地使用的无线电技术。

It is shown through computation that the orientative exploring capacity of the tool is greatly enhanced because of the existence of the drill collar.

计算发现，钻铤的存在大大提高了仪器的定向探测性能。

First to unfold were the two 14-foot-wide drogue chutes,which criented the craft and continued slowing it.

首先要打开的是那两个 14 英尺宽的拖靶斜槽，这两个东西使飞机定向，并继续使之减速。

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。