差等

Because of the factors of isotopic contamination, unreasonable pipe structure of water injection wells, existence of big pore formation,cement channeling and poor well performance, the well logging data of injectivity profile accuracy is influenced.

由于同位素污染、注水管柱结构不合理、存在大孔道地层、固井窜槽和井况变差等因素，影响了吸水剖面测井资料的准确性。

Numerical simulation of temperature field of soil around the horizontal ground pipe;2. The paper presents a new technique of producing methane with solar heating in cold area,develops the experiment system for producing methane with solar heating,studies the heat-transfer content、temperature difference of heat interchanger and temperature field of soil around the digester fermenting,gives the value of heat .

为解决北方地区由于冬季气温、地温低，沼气生产存在产气率低、使用率低、原料分解率低、沼气使用综合效益差等问题，文章介绍了一种利用太阳能加热制取沼气的方法，建立了太阳能加热制取沼气的试验系统，研究了换热器的加热量、进出口温差以及沼气池周围土壤温度场的变化情况，并给出了换热器的传热系数。

The paper presents a new technique of producing methane with solar heating in cold area,develops the experiment system for producing methane with solar heating,studies the heat-transfer content、temperature difference of heat interchanger and temperature field of soil around the digester fermenting,gives the value of heat .

为解决北方地区由于冬季气温、地温低，沼气生产存在产气率低、使用率低、原料分解率低、沼气使用综合效益差等问题，文章介绍了一种利用太阳能加热制取沼气的方法，建立了太阳能加热制取沼气的试验系统，研究了换热器的加热量、进出口温差以及沼气池周围土壤温度场的变化情况，并给出了换热器的传热系数。

Based on the analysis of the hobbing machine workbench structure analyze the reasons of the workbench to radial jumpiness shaft jumpiness over tolerance and point out the removal method of various breakdowns .

在对滚齿机工作台结构进行分析的基础上，对工作台出现径向跳动，轴向跳动超差等故障的原因进行了分析，并指出了各种故障的排除方法。

Department of Judicial Information, Shandong Politico-legality Institute,Ji′nan 250014,China摘要: This paper presents a solution using GPRS to remote reading electric kilowatt-hour meter, aiming at the shortcoming of human reading meter in power system such as expand more people and more time, low reliability and data is not real time.

针对目前电力系统中人工抄表费时费力，可靠性和实时性差等缺点，提出了使用GPRS作为传输方式的电能表无线抄表方案。

Aiming at the poor web uniformity of non-woven fabrics produced by traditional cross lapper,the motion control bus SERCOS is applied in the digital servo system of the W1251 cross lapper.

针对传统交叉铺网机生产的非织造布棉网均匀度较差等问题，将运动控制总线SERCOS应用于W1251交叉铺网机数字伺服系统。

At present, the development of the fiber is still on the initial stage. The soybean-protein fiber has the drawbacks of the dyeing behavior and levelness.

该纤维的研制和开发处于初级阶段，纤维和织物的染色性能不够理想，织物的湿热性能较差等。

The main reason is the lowness index of city environment and city virescence, no high produce efficiency and low social security etc.

主要原因是城市环境与城市绿化指标值太低、生产效率不高、社会保障程度差等。

Three magnetic amplifier s, such as adjustable-damper controlling, speed-limited protection in deceleration segment, and automatic braking largely used in alternated-elevator system in nation's coal and metallurgy exhibit quickness and firmness.

我国煤炭和冶金矿山大量使用的交流提升机，控制系统采用的可调闸控制、减速段限速保护和减速阶段电气制动三个磁放大器装置，存在快速性、稳定性、对环境参数的依赖性、敏感性均较差等固有弊端，采用现代电子器件和先进的控制技术取代原控制系统中的1CF、2CF、 3CF三个磁放大器及其落后的控制技术，并增加全新的电子速度给定环节，改善提升机性能

To partially emphasize employment education deviate a school's work from the focus of training talents,and leads to such negative results as students' deficiency of creativity,maladaptation to the ...

片面强调"就业教育"会使学校工作偏离了人才培养这个重心，并导致学生创新能力缺失、适应职业岗位变化能力变差等不良后果。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。