中压

The treatment of car-washing wastewater by using membrane bioreactor was investigated. The influences of operating pressure and environmental factors on the membrane's filtration function were analyzed combining with theoretical calculations. In the meiobar range, membrane resistance was the dominant role, independent of operating terms. In the middle pressure range, concentration difference-polarized resistance was the dominant role, depending much on operating terms. In the high pressure range, gelatin resistance was the dominant role. The influences of the operating pressure was small on the membrane flux, and the membrane's separating characteristics were related much with mud concentration, membrane flow velocity and etc.

通过膜生物反应器处理某车辆厂洗车废水的实验研究，结合理论计算，分析了操作压力及环境因素对膜过滤性能的影响研究结果表明，在低压区，膜本身阻力占主导地位，它与操作条件无关；在中压区，浓差极化阻力占主导地位，它与其他操作条件关系密切；在高压区，凝胶层阻力占主导地位，操作压力增加对膜通量影响不大，在此阶段膜分离特性还与污泥浓度、膜面流速等操作条件有关。

In the meiobar range, membrane resistance was the dominant role, independent of operating terms. In the middle pressure range, concentration difference-polarized resistance was the dominant role, depending much on operating terms. In the high pressure range, gelatin resistance was the dominant role. The influences of the operating pressure was small on the membrane flux, and the membrane's separating characteristics were related much with mud concentration, membrane flow velocity and etc.

研究结果表明，在低压区，膜本身阻力占主导地位，它与操作条件无关；在中压区，浓差极化阻力占主导地位，它与其他操作条件关系密切；在高压区，凝胶层阻力占主导地位，操作压力增加对膜通量影响不大，在此阶段膜分离特性还与污泥浓度、膜面流速等操作条件有关。

The advantages of dual grafts for bridging defects are as follows:(1) mechanical fixation is better than fixation by a single onlay bone graft;(2) the two grafts add strength and stability;(3) the grafts form a trough into which cancellous bone may be

双侧植骨桥接骨缺损的优点包括：①机械固定作用比单侧贴附植骨更好；②双侧植骨可增加强度和稳定性；③双侧的植骨可形成一骨槽，可在其中压紧松质骨；④与单侧植骨不同，双侧植骨在愈合过程中可防止挛缩的纤维组织危害移植的松质骨。

The adantages of dual grafts for bridging defects are as follows:(1) mechanical fixation is better than fixation by a single onlay bone graft;(2) the two grafts add strength and stability;(3) the grafts form a trough into which cancellous bone may be packed; and (4) during healing the dual grafts, unlike a single graft, preent contracting fibrous tissue from compromising transplanted cancellous bone.

双侧植骨桥接骨缺损的优点包括：①机械固定作用比单侧贴附植骨更好；②双侧植骨可增加强度和稳定性；③双侧的植骨可形成一骨槽，可在其中压紧松质骨；④与单侧植骨不同，双侧植骨在愈合过程中可防止挛缩的纤维组织危害移植的松质骨。

The present study is helpful to understanding the medium_pressure metamorphic process of the continental collision orogenic belt.

这一研究可以加深入们的对造山带发生中压型变质作用过程的理解。

This transparent poisonless soft tube has PVC as the internal and external walls and the fiber in the middle as the strengthening layer. It has the advantages of mid-pressure-resist, pull-resist, corrosion-resist, beautiful outlook, soft, light and lasting; it is really the best choice for transporting

本产品是内外壁为软PVC，中间增强层为涤纶纤维的透明、无毒软管，它具有耐中压、抗拉伸、耐酸碱、耐腐蚀、外型美观、柔软轻便、经久耐用之特性，在0-65℃范围是空气、水、煤气、油类及其它液、气体的良好管道。

Subordinately come the moderately compacted and moderately cemented DRF3-type reservoirs in the Kongdian Formation, intensely compacted and moderately cemented DRF5-type reservoirs in the middle submember of the second member of the Kongdian Formation, and slightly compacted and moderately cemented DRF1-type reservoirs in the lower submember of the first member of the Kongdian Formation.

潍北油田孔店组储层主要属中压实中胶结的 DRF3型，其次是孔二中亚段发育的强压实中胶结的 DRF5型与孔一下亚段发育的弱压实中胶结的 DRF1型，局部出现其它三种类型的成岩相。

The growth path of crack was increased due to the interaction of compressive and tensive stress. The effect of residual stress was kept as long as the boundary of the grains was intacted.

由于基体中压应力和拉应力的共同作用使裂纹在基体中的扩展路径增加，增加了裂纹扩展的阻力，且偏转程度显然比不考虑残余应力场时大很多。

The method includes the following steps: getting specific amount of knitted or unknitted natural fiber and dipping the natural fiber in the aqueous solution of silane coupling agent for 1-100min, taking out and drying the natural fiber, thus producing natural fiber with modified surface; then pressing the polylactic acid into sheet in a plate vulcanization machine; disposing 2-10 polylactic acid sheets into a die and arranging one modified natural fiber sheet between every two polylactic acid sheets; pressing and molding the sheets; in this way totally biologically degradable polylactic acid composite material can be made.

该方法为：先取一定量的经过编织或未编织天然纤维，将其浸渍在偶联剂水溶液中1～100分钟后取出，经干燥后得到表面改性的天然纤维。然后，将聚乳酸在平板硫化机中压制成薄板；将2～10片聚乳酸薄板放在模具中，且每2片之间放置1片改性的天然纤维，然后模压成型，得到可完全生物降解聚乳酸复合材料。

The unstripped gas of the factory is from the Natural Gas Processing Plant of Northwest Mining Area of SPA,and the produsts of the factory are LPG and natural gasolin.

我国最大的中压天然气透平膨胀机致冷回收天然气中液体烃的工厂已在四川石油管理局川西北矿区建成投产，各项技术指标均已达到设计要求。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。