使降低

Also in order to maintain the balance of the main impeller axial force, shall be a Vice-impeller structure, it can reduce the pressure sealed chamber, so that the axial force pump and Magnetic pumps mechanical seal life are greatly increased.

另外为了保持主叶轮轴向力的平衡，须设置一个副叶轮结构，它能降低密封腔的压力，使电泵的轴向力及机械密封的寿命均大大提高。

The results indicated that 0.3% brackish water could be used for growing melon without any yield losses,but fruit yield reductions were significant(P.01) during straw period and flor-fruit period and(P.01) during fruitage at 5,7 and 9 g/L.The salinity improved quality during fruitage and decreased quality b...

结果表明，在不同生育时期3 g/L咸水处理对甜瓜产量均无显著影响，在开花坐果期和伸蔓期至果实成熟期，5，7，9 g/L咸水处理的单果重均极显著低于对照，而在果实发育期各咸水处理的单果重均显著低于对照；在甜瓜果实发育期以前，不同浓度咸水处理使甜瓜品质稍有降低，而后期处理则能提高甜瓜果实的品质，其中可溶性蛋白含量的变化不大；伸蔓期至果实成熟期持续咸水处理对甜瓜营养生长有明显的抑制作用，其中对株高的影响表现得尤为突出。

The former might confuse the readers and fuddle their comprehension, while the latter might neglect the author's intention and lower the translation's class.

前者会让读者摸不着头脑，不知所云，后者可能在翻译当中，丧失了作者的意图，使译作的品位降低。

The three-phase full-wave rectifier charging system is composed of 3 silicon-controlled rectifiers and 3 diodes, and a variable resistor is used to adjust the trigger level such that the power factor of generator can be raised, the current harmonic content can be reduced, and the operational efficiency of generator can be improved.

本研究之整流充电系统，为利用三颗矽控整流器和三颗二极体组成的三相全波矽控整流充电系统，利用VR可变电阻调整元件来做触发机能，可使发电机端功率因素提高，降低电流谐波含量，得到稳定的直流链电压，提高发电机的运转效率。

Medical institutions also should put more attention to administration of infectious disease department, perfat related system and flowsheet, intensify the training and test of medical staff about infectious disease knowledge in order to make the infectious disease department operated effectively, lay solid foundation for coping with the fulminate epidemic of infectious disease and decrease the incidence of nosocomial infection.

医疗机构应重视感染性疾病科的建设与管理，完善相关制度、流程，加强对医务人员感染性疾病相关知识的培训和考核，使感染性疾病科能真正运行起来，为应对传染病的暴发流行打下良好的基础，降低院内感染的发生。

Is the theory as a guide, the selection of a heterogeneous catalytic function of inorganic salt, the efficient preparation of compound catalyst, can make the original conversion rate of increase heterogeneous 4 to 5 percentage points, reducing the pollution of the environment and can significantly reduce Fumarate production costs and have a good economic and environmental benefits.

是以相关理论为指导，遴选有异构催化功能的无机盐，制备复合型的高效催化剂，可以使原有的异构转化率提高4～5个百分点，减少对环境的污染，且能显著降低富马酸的生产成本，有很好的经济效益和环保效益。

The percentage of jitter increased and the percentage of fundamental frequency decreased with severity.

肥厚的室带可能参与发音，使基频和低音降低。

Based on KT-01 nickel catalyst, the scientific research personnel of our company and the expert group of the former subject group from Lanzhou University made joint efforts to tackle the key problems and successfully developed the 2nd generation of KT-02 supported nickel catalyst through in-depth study on the technical formula, catalytic activity and other mechanisms and taking modified carrier, the properties of acid and alkali, the degree of decentralization of active ingredients on the carrier surface, and fundamental breakthrough has been achieved on the aspects of catalytic activity, specific surface area, bulk density, etc, and the technical defects of KT-01 nickel catalyst are completely overcome; the catalytic activity becomes higher, the starting temperature becomes lower, the industrial serviceability temperature is lowered and the yield increased.

在KT-01型镍催化剂的基础上，我公司科研人员与兰州大学原课题组专家联合攻关，通过对工艺配方及催化活性等机理的深入研究，从载体改性、酸碱性、活性组分在载体表面的分散程度等方面入手，成功开发出第二代KT-02负载型镍催化剂系列产品，在催化活性、比表面积和堆密度等方面都有根本性突破，彻底克服了KT-01型镍催化剂的技术缺陷，使催化活性更高、启动温度更低，降低了工业使用温度，提高了生产收率。

Beijing has imposed bans for old-fashion cars and leaded gas as well as set severe restricts to car emission. During the Olympic game, the license plates numbers are varied into odd and even in order to cut the emission in half.

多年来北京市已在淘汰老旧汽车、禁用含铅汽油、提高尾气控制标准方面做了许多工作，又在奥运期间施行"单双号出车法"，使大气中的有害气体含量降低了一多半。

This paper has established the mathematical model of its optimal design for studying wet-field roller boat's gear transmission case.

为减轻机滚船质量、节约材料、降低生产成本，以机滚船齿轮传动箱为研究对象，建立了其优化设计的数学模型，在保证给定中心距和传递功率的条件下，合理选择齿轮传动参数，使传动箱的用料最少。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。