下降了...

The foundation and the pumping characteristic of the neutrality gases provide important physics parameter for investigate the ability of impurity stay, concentrate and remove efficiency and the radiation divertor, debouch divertor.

实验结果表明，HL-2A装置边缘等离子体扰动诱发的静电雷诺协强产生了边缘极向流；偏滤器位形运行模式下，主真空室中边缘等离子体再循环降低，杂质水平下降，中性化气体的建立和抽除特性为研究偏滤器的杂质滞留，浓缩能力和排除效率以及辐射偏滤器，脱离偏滤器提供了重要的物理参数。

In this paper, two kinds of learning methods of fuzzy systems are analyzed first,using genetic algorithm and the gradient descent method.

文中首先对模糊系统的两类主要的学习算法：梯度下降和遗传算法方法进行了深入分析，并指出了存在的问题。

The structure of FMC is given in detail, and the key parameters are tuned by gradient descent training method.

给出了模糊调制控制器的结构，运用梯度下降法对模糊控制器的关键参数进行了优化。

This paper illustrates various methods which are being used and being researched both home and overseas at the present time, such as the method of steepest descent, dynamic programming method, expert system method and genetic algorithm etc.

分析了低空突防路径规划应满足的条件和特点，阐述了目前国内外正在应用和研究的几种路径规划方法：最速下降法、动态规划法、专家系统法和遗传算法等的研究现状和发展方向。

Soil microbial biomass and activities of invertase and urease all tended to decrease after pot-culture experiment, while the correlations between these biochemical properties and field ages were similar to those before this experiment, suggesting that rice cultivation without fertilization consumed part of soil microbial biomass, decreased soil enzyme activities correlated with C and N transformation, and affected soil nutrients status disadvantageously.

温室盆栽试验之后，水稻土的微生物生物量及酶活性与利用年限之间的关系规律和种植水稻之前基本一致，且整体上又趋于下降，即无施肥条件下种植水稻转化利用了土壤部分微生物生物量，并减弱了与碳氮转化相关酶的活性，对保持水稻土的营养水平造成不利影响。

Stocks of distillate, including diesel, fell, but remain 30% above the five-year average.

包括柴油在内的馏分油库存量出现了下降，但仍比五年平均水平高出了30%。

"While overall sale volumes have declined across the market, a 5% rise in sold percentages since the beginning of the year, combined with sustained price levels, throughout the period demonstrate that art has continued to hold its value," said Edward Dolman, Chief Executive Officer, Christie's International.

"尽管总成交额比去年同期有所下降，但自今年年初增长了5%的成交率以及稳定的价格皆体现了艺术品的保值性。"佳士得国际首席执行官 Edward Dolman 说道。

While overall sale volumes have declined across the market, a 5% rise in sold percentages since the beginning of the year, combined with sustained price levels, throughout the period demonstrate that art has continued to hold its value," said Edward Dolman, Chief Executive Officer, Christie's International."

尽管总成交额比去年同期有所下降，但自今年年初增长了5%的成交率以及稳定的价格皆体现了艺术品的保值性。

He is said to have drowned in the Yangtze River, having fallen from his boat while drunkenly trying to embrace the reflection of the moon.

据说，他是被淹死在长江，下降到了他的船，而酒试图拥抱反映了月球。

So the variety of L21 andLainong9217 should be planted in dry land of high yield,and the variety ofLainong8834 and YD27 in dry land of middle yield,and gaining high yieldand high efficiency.2 The researches on the flag leaf and root system senescence after anthesisand yield were studied in dry land wheat of high yield,the activity of super-oxide dismatase and catalase、and the soluble protein content、Cytokinincontent in wheat flag leaf and root system after anthesisand Cytokinincontent in grain decreased slowly,and the content ofmalondiadehydeand the Abscisic Acidcontent in wheat flagleaf and root system and the Abscisic Acidcontent in grain increasedslowly,meanwhile keep higher root vigor and the root vigor decreased slow-ly,the result would be benefit to delay the senescence and gain high yield.3 The effects of soil thickness on the senescence of flag leaf and root sys-tem、nitrogen distribution and utilization and water consumption law andyield in dry land wheat had been studied in soil column and field.

通过大田条件下旱地高产小麦耗水规律及产量变化的研究表明，4个品种耗水量、产量、水分生产率、籽粒产量中来自花后光合器官输送的比例及综合效益评判结果均以鲁麦21和莱农9217为高，而莱农8834和烟D27则与此相反，因而在旱地高产麦田应以种植鲁麦21和莱农9217为主，中产麦田以莱农8834和烟D27为主，以获得高产高效。2在旱地高产大田对鲁麦21与烟D27两品种花后旗叶、根系衰老及产量变化进行了研究，认为花后旗叶与根系SOD、CAT活性、可溶性蛋白质含量、i-PAs含量及籽粒iPAs含量降低缓慢，MDA含量、ABA含量及籽粒ABA含量增加缓慢，同时保持较高的根系活力且下降缓慢，有利于延缓衰老，形成高产。3土层厚度对旱地小麦花后衰老、氮素分配利用及产量的影响进行了研究，随土层厚度加深，根系活力、根系与旗叶SOD、CAT活性及可溶性蛋白质含量增加，MDA含量减少，土层愈薄，其根系与旗叶衰老愈快。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。