使降低

Compared with the blank controls, aldrin at concentrations higher than 80 μg/L decreased life expectancy at birth and net reproduction rate of maternal generation of the cladoceran, and that at concentrations higher than 160 μg/L shortened generation time and decreased intrinsic rate of population growth.

与空白对照组相比，浓度高于80μg/L的艾氏剂使多刺裸腹溞母代的生命期望和净生殖率显著降低；浓度高于160μg/L的艾氏剂使母代的世代时间显著缩短，种群内禀增长率显著降低。

The postural stability is reduced when the head of normal individuals is put in a extended position during standing with eye closed. Head extension may make the body more reliance on the proprioceptive input.

人体本体觉受到干扰时，其静态平衡姿势稳定性降低；正常青年人闭眼同时头部后仰可使姿势稳定性降低，且头部后仰可能使机体对本体觉的依赖增加。

Inoculating lactic acid bacteria resulted in a rapid drop in pH,and had the ability to control the growth of pathogenetic microorganisms in ensilage of the corn straw. The fiber content of the straw inoculated with cellulase as decreased from 35.3% to 25.3%,and the level of water soluble carbohydrate was higher than that of the control.

玉米秸秆黄贮过程中接种乳酸菌可以迅速降低原料的pH值，有效抑制腐败菌生长；添加纤维素酶，可以使秸秆的纤维含量由原来的 35 。3%降低到 2 5 。3%，并增加可溶性碳水化合物含量；同时使用酵母菌，可使粗蛋白含量提高 10 %。

Policy of come off sentry duty reduced the consumptive demand of state-owend enterprise worker greatly, make place of feebleminded force worker exasperate, make place of high-energy force worker is improved, support spends their policy to close with its ability positive, weakening policy of come off sentry duty to lose the only track of action is the anticipation that increases state-owend enterprise worker income and the uncertainty that reduce income.

下岗政策在很大程度上降低了国企职工的消费需求，并使低能力职工处境恶化，使高能力职工处境改善，他们的政策支持度与其能力正相关，削弱下岗政策负作用的惟一途径是提高国企职工的预期收入和降低收入的不确定性。

Numerical tests are also conducted to investigate the microphysical effects to the mesocale convective systems. The evaporation of raindrops can strengthen the surface "cold pool" to decease the temperature of rainfall center. The condensation of vapor can lower the air pressure and increase the convergence and updraft so that the convective echo develops stronger. The melting of graupel can cool the air to restrain the convective activity. The falling of precipitation particles can increase the downdraft and induce the outflow nearly the surface. The effect of condensation is the most important among all the microphysical processes. It can change the whole structure of cloud system.

微物理过程对对流系统发展和维持有重要作用：强降水的雨滴蒸发过程会加强"冷池"效应，同时增强了雨带南侧原有的地面中尺度辐合线；凝结潜热在低层诱发了与回波相应尺度的中尺度低压，增强了辐合和上升运动，促进对流发展；霰的融化吸热通过冷却大气会不利于气压下降、气流辐合抬升等过程，降低对流不稳定能量，减缓对流发展；重力拖曳使气块冷却降温，降低对流不稳定能量，并且使低层的气压升高、气流辐散，在近地面附近产生出流，加强地面中尺度辐合线的强度。

The company invests mount a horse the project of form a complete set of cooking of defer of 1 million T hydrogenation of 800 thousand T refines and 30 thousand T is sulfureous reclaim project, quality of farther promotion product, reclaim effectively the 2 oxidation sulfur in waste gas, have major economic benefits and social benefit; to invested many yuan 6000 to build two dry gas to make hydrogenous device, make waste gas reclaims rate achieved 95%, reduced the discharge capacity of waste gas substantially, reduce; of the cost that make hydrogen to be in greatly at the same time more than heat, beyond pressure, of more than gas used a respect integratedly to carry out 22 technical reformation, make enterprise ton the banner level that oily treatment specific power consumption reached industry of domestic person of the same trade.

公司投资上马了100万t延迟焦化的配套项目80万t加氢精制和3万t硫磺回收项目，将进一步提升产品质量，有效回收废气中的二氧化硫，具有重大的经济效益和社会效益；投资6000多万元建设了两套干气制氢装置，使废气回收率达到了95%，大幅度降低了废气的排放量，同时大大降低制氢成本；在余热、余压、余气的综合利用方面实施了22项技术改造，使企业吨油加工能耗达到了国内同行业的领先水平。

Effect of cerium on the ignition point of AZ91D magnesium alloy;2. Probe to the definitions of ignition point and self- ignition point and their relation;3.1 could reduce the carbon ignition point to 380 ℃ and was of a remarkable.

1制备的催化剂能使碳的起燃点降低到380℃左右，且去除碳效果明显，在此基础上，减少钾的含量或增加钙的含量，都会使催化剂的活性有所降低。

It traps charges, lowering the voltage on the ionosphere, and on us.

它挡住了电荷，使电离层的电压降低，也使我们身体上感应的电压降低。

The results indicate that the type and number of the substituents affect the toxicity of these compounds directly. A nitro group substitution increases the toxicity of the compounds, and on the contrary, an amido group substitution decreases their toxicity. For multi-nitrobenzenes, the toxicity of the o - or p -substituted nitrobenzene is bigger than that of the m -substituted one.

苯环上取代基的类型、数目和取代位置直接影响到标题化合物的毒性大小，强吸电子基如硝基会降低 Q -NO2和 E LUMO大小，使化合物毒性增强，且邻对位硝基取代的毒性高于间位取代；相反，给电子基团氨基的存在则会使化合物的毒性降低。

However, MeJA treatment decreased DIMBOA and p－Hydroxybenzoic acid content of the third leaf significantly, while root DIMBOA content was increased significantly.

2MeSA处理叶片能诱导叶片中AOC基因、β－1，3葡聚糖酶基因（PR2a）基因及根中BX9基因的表达，使第三叶丁布含量降低，根中丁布含量升高，第三叶对羟基苯甲酸含量显著降低，6μL/L的MeSA处理则使根中香草酸含量升高。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。