下降

The whole ecological benefit shows downtrend, especially the area of nutrient waterhead and water and soil benefit in forest get large, and on the contrary the forest area lessens.

整体森林生态效益价值呈下降趋势，特别是森林的涵养水源和保持水土效益价值在森林面积增加的情况下反而下降。

The results showed that different topping frequency (at intervals of 15 d, 30 d, 60 d, 90 d) had no evident influence on total wine loss, volatile acid content, T-SO2,F-SO2, wine colour, and wine pH values. Under constant temperature and humidity conditions, total wine loss was closely correlated with the using degree of Chinese barrel and the storage time in Chinese barrel. Volatile acid content slightly rose along with wine storage time. The content of SO2 dropped rapidly during 15 d after wine filling, but dropped tardily ever since. Wine colority rose remarkably during 15 d after wine filling, but climbed tardily ever since. Wine colority change was unstable, it changed wavily and depressed on the whole. In conclusion, it was recommended that the best topping interval was 90 d.

结果表明，橡木桶15 d、30 d、60 d、90 d添桶间隔对红葡萄酒的酒液损失总量、挥发酸含量、T-SO2、F-SO2、颜色、pH值无显著影响；在恒温恒湿的条件下，红葡萄酒的酒液损失总量与橡木桶的新旧程度、桶贮时间密切相关；随桶贮时间延长，葡萄酒中挥发酸略有上升；葡萄酒入桶后15 d内SO2含量急剧下降，以后则缓慢下降；葡萄酒入桶后15 d内色度显著上升，但随后变化平缓，总的趋势是随桶贮时间延长色度缓慢上升；葡萄酒的色调变化不稳定，呈波浪式变化，总的趋势是降低；建议中国橡木桶桶贮红葡萄酒的添桶间隔为90 d。

Otherwise, the grassland types had changed in different levels, in which the types of moist-steppe were decreased and disappeared year after year, and the types of sandy-vegetation and xerophytic vegetation were increased obviously.

大针茅草原分布面积少量增加；牧草的高度、盖度及产量呈下降趋势；植物的多度平均以每年1％的速度递减；牧草质量明显下降，质量评价等级平均降低近一个等别。

At this stage the coral is still alive, and if the water cools, the coral can regain its zooxanthellae.[28] If the water does not cool within about a month, the coral will die of starvation. Australia experienced its warmest year on record in 2005. Abnormally high sea temperatures during the summer of 2005-2006 have caused massive coral bleaching in the Keppel Island group.

在这个阶段，珊瑚仍是活的，如果水温下降，珊瑚可以重新获得共生藻；如果约一个月内水温未下降，珊瑚将死于食物短缺。2005年是澳大利亚史上气温最高的一年，2005与2006年夏天异常的高温导致了凯珀尔岛群的珊瑚大量白化。

5C1 =2. 5, the chlorin fixation decreased from 80. 97% to 11. 24% with the temperature increased from 600 C to 1000 C.

SCI=2.5时，温度从600℃升高到1000，C，固抓率由80.97%逐渐下降到1 1.24%，下降的趋势十分明显。

The sizes of the self-assembly micelles of the amphiphilic block copolymers and the effects werestudied by dynamic light scattering and UV-visible spectrophotometer. The micelle sizes werelargely influenced bythe hydrophobic chain content in the copolymer, the properties of the solvent and the copolymer concentration in the organic phase. The morphology of the micelles was investigated by transmission electron microscopy. Theresults showed that the micelles appeared spheres with inner core and outer shell. The critical association concentrations were determined by pyrene monomer fluorescence probe technology. The degradability of copolymer was studied by the loss of the intrinsic viscosity in the degradation process. The results indicated that the degradation rate of PECL was slower thanthat of PELLA and PEDLLA. The stability of the copolymer micelle dispersion was examined by measuring the critical flocculation concentration, which gradually decreased with increasing the content of thehydrophobic chain in the copolymer. The rheological results showed thatthe viscosity ofthe micelle dispersion with higher content of PEG segments was firstly decreased and then increased with the increasingthe temperature. Otherwise, the variation of viscosity was irregular. The viscosity of the micelle dispersion increased with the increase of the electrolyte (Na 2SO 4) concentrations. Polymer micelles paclitaxel was prepared by self-emulsification/solvent evaporation method and solid dispersion technique with amphiphilic block polymers as the carrier material.

运用动态光散射和紫外分光光度计研究了两亲性嵌段共聚物自组装胶束的粒径及其影响因素，结果表明，自组装胶束的形成机理受制备方式的控制，胶束的粒径随着共聚物相对分子质量或疏水嵌段相对分子质量和有机相中共聚物浓度的增大而增大，随着有机溶剂的水溶性的增强而减小；采用透射电镜观察胶束的形态结构，发现胶束呈具有核壳结构的均匀球形；采用芘荧光探针法测两亲性嵌段共聚物的临界聚集浓度；通过降解过程中共聚物特性粘度的变化研究两亲性共聚物的降解性能，发现与PELLA和PEDLLA的相比，PECL 降解速率较慢；随着共聚物中疏水嵌段含量的增大，纳米分散液的稳定性逐渐下降；PEG含量高的PEDLLA纳米分散液随着温度的升高，纳米分散液的粘度先下降然后增大，反之，没有规律性，且随着电解质Na 2SO 4浓度的增大，体系粘度增大。

The major reason lies in the ill-balanced industrial structure,namely structural surplus in total agricultural supply.

我国农业在国民经济中的比重不断下降，农民收入增长幅度持续下降，重要原因是农村产业结构不合理，农业总供给突出表现为结构性过剩。

Blink of an eye, the distance last year on October 16 The top market at 6124 years has been over a year, the Shanghai Composite Index over the past year decline in just 2/3, the decline in stock list up the situation is appalling.

眨眼之间，距离10月16日最大的市场在去年六千一百二十四年已超过一年，上海综合指数在仅在过去一年中下降2 / 3，库存上升的情况列表下降令人震惊。

They search for food by moving over ice from island to island during the course of a year.

他举例说，最近当地的猎人报告说鹿的数目在下降，而这种下降又伴随全球气温上升的趋势。

As with soybeans the major reason was decreased oil exports to China.

和大豆的情况一样，豆油出口量下降的主要原因也在于对中国出口量的下降。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷