关键

In this study, BADH, gene encoding the key enzyme in betaine biosynthesis, which was isolated from Atriplex hortensis, and SeNHX1, a vacuole Na+/H+ anitiporter in Salicornia europhaea L., were used to transform the tobacco to improve the salt tolerance.

本研究拟用耐盐性较强植物山菠菜中的甜菜碱合成关键基因BADH和盐生植物盐角草的液泡膜Na+/H+ anitiporter基因SeNHX1对模式植物烟草进行转化，以确定其各自在耐盐性方面所起的作用。

At such a crucial period for the readjustment of the economic structure and social transformation in our country, the Hunan Provincial Party Committee and Provincial government attache great importance to vocational education, and they think the development of vocational education is an important foundation in economic and social development and strategic focus for education.

在经济结构调整和社会转型的关键时期，湖南省委、省政府高度重视职业教育工作，把发展职业教育视为经济社会发展的重要基础和教育工作的战略重点。

Along with the spread of city and the manifold of vehicle, vehicles attemper and management has become an important question of society.

随着城市规模的不断扩大，城市车辆的日益增多，交通运输的合理调度和管制日益成为社会的一个重要问题，也成了促进社会生产和人类生活的关键环节。

Smallish content can search engine to punish, but the likelihood is harmed if crucial content is too attenuant bigger, accordingly, I recommend the tall keyword density of 150-250, reduce pronoun.

短小的内容会遭到搜索引擎惩罚，但是关键内容过于稀释的话可能伤害更大，因此，我推荐150-250的高关键词密度，并减少代名词。

Secondly, a lot of electrical equipment in substations (esp. transformers) is very sensitive to the steepness of lightning surge. At present, more and more research data indicate that impact corona is a crucial factor to attenuation and distortion of lightning surge.

其次，变电站的电气设备，特别是变压器，对于沿线路袭来的雷电入侵波陡度十分敏感，而最近越来越多的研究资料表明：入侵波沿导线传播过程中发生衰减和畸变的关键因素是冲击电晕。

Noise attenuation of seismic data processing is one of the key questions that can not be ignored.

噪声衰减是地震资料处理中的关键问题之一。

Multiples attenuation is one of the most important problems in marine seismic data processing.

多次波衰减是海洋地震数据处理中的一个关键问题。

Variable optical attenuator is one of the key devices in wavelength-division multiplexing systems.

可变光学衰减器是波分复用系统的关键器件之一。

The point is that each vendor has a single, much improved product set that is priced more attractively.

关键是每家供应商都有单一的、得到很多改进和定价更有吸引力的产品集。

It is the key to harnessing the mind in the attunement stage of meditation.

这是在冥想的调谐状态中驾驭心智的一个关键。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。