使降低

Most plants are C3 plants; they experience decreased carbohydrate production under hot, dry conditions as a result of the effects of photorespiration.

大部分植物是碳3植物，在高温干旱条件下，由于光呼吸作用而使碳水化合物的合成降低。

This suggests that the membrane is the target of photodamage and the free redicals of lipids produce by HA photosensitization is probably the important factor that initiates the damage of DNA and causes cell death finally.

实验还表明HA加上光照后对细胞具有明显的杀伤作用，使细胞存活率显著降低，提示HA光敏作用靶部位是细胞膜，而引发的脂自由基等产物可能是诱导DNA等损伤，最终导致细胞死亡的重要因素。

Because accumulation of photosynthate decreased, the increase in the N fertilizer made soluble sugar content in flag leaves reduce.

由于光合产物积累减少，增施氮肥使旗叶可溶性糖含量降低。

Coal tar pitch reduced coke reactivity and increased coke strength after reaction by means of increasing coke optical anisotropy.

煤沥青通过增大焦炭光学组织各向异性程度，使焦炭的反应性降低，反应后强度提高。

Reflection system uses the precise ion plating film reflection bowl and the precise aspherical plano convex lens.

反光碗采用高效离子镀膜凌面椭球体反光碗，射出的光比同类产品的温度降低40%，使灯泡寿命延长。

Biological treatment of saline wastewater presents unique difficulties as a result of plasmolysis of microorganisms which can cause microorganism death in the presence of high salt concentrations.

因为盐析作用可致使微生物的脱氢酶活性降低，同时水的渗透压也会升高，使微生物细胞脱水引起细胞原生质分离，从而导致微生物细胞破裂而死亡。

However, most of the distribution of the earth pressure behind the flexible wall is of "R-shape" when the flexible wall experiencing "drum-shape "movement. Besides, the friction between the flexible wall and the soil is active during "drum-shape" movement, which decreases the deformation of the wall, lowers the application point of the resultant force and makes the development of the plastic in soil mass slow down.

研究结果表明，鼓型变位下柔性挡墙墙后土压力分布形式基本上为R字型；此外，墙土摩擦作用使墙体变位量变小，土压力系数降低，土压力合力作用点下降，塑性应变发展缓慢，从而提高墙体安全度。

The critical time of failure was determined according to the discontinuity point of activation energy and dynamic mechanical properties.

但由于分子链极性基团的存在，PA66易发生老化，从而导致材料的性能降低，使其使用安全性和使用寿命受到影响。

This paper presented a three-phase heuristic approach to deal with this NP-hard problem. During the process of determining the bottleneck work center, arranging the devices, and ordering the jobs, reduced the complexity of the problem gradually. Therefore obtained an effective solution within polynomial time.

针对这个NP-hard问题，提出一种三阶段启发式方法，通过依次完成瓶颈工作中心的判定、设备分配和任务排序，使这一问题的复杂度得以逐步降低，从而可以在多项式时间内得到有效的调度方案。

When the prices of , lower than its value more, we should gradually raise the purchasing price of when the industrial products (especially agro-industrial products) the price is higher than the value of more, should try to reduce the sales price, the exchange of post industrial and Gradually narrowing.

当农产品的价格低于其价值较多时，应逐步提高农产品的收购价格；当工业品的价格高于价值较多时，应尽量降低其销售价格，使工农业产品交换差价逐渐缩小。

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。