More and more people are being stricken by the polluted air and water , as a result old men and children have bad immune ability , all of which tortures thousands of families 在我国，环境污染十分严重，越来越多的人处于亚健康状态，老人、儿童免疫力差等各种问题时刻困扰着千家万户。
The device can realize the following functions : automatic stabilizing voltage , contravariant magnet - suppressing , the smallest excitation limitation , residual voltage starting excitation and reactive regulation 实现自动稳压、逆变灭磁、最小励磁限制、残压起励、无功调差等功能。
Chapter three discusses the current state of the chinese commercial banking ownership limits the sources of capital and leads to a high ratio of bad loans and low profitability 我国国有商业银行的产权制度是国有独资的，结果导致资本金来源单一，不良资产比率高，赢利性差等一系列问题。
4 ) contraposed the low reusability and poor stability of automonitor software , the system structure of supervisory and configuration software was research and designed 4 )针对自动化监控软件的无法重用和稳定性差等问题，基于各种最新软件技术，设计了过程控制系统的通用监控组态软件的体系结构。
In order to overcome those defects , we chose the fluid oscillation characteristics of vortex type fluid oscillatory flowmeter as research subject on the basis of the former achievement 本论文针对旋涡型流体振动流量计小流量信噪比低和抗干扰性能差等问题，确定以流体振动特性应用基础为主要方向。
Though the wireless intercom can be used to realize industrial communication , yet it exists the requisitions of such as applying for frequency points and communicating with only the people who carry intercoms 使用无线对讲机进行工业通信，存在需申请频点、只能在携带对讲机者间通信和通话质量差等缺点。
Dtc system is a high - performance adjustable speed system with fast torque response , but it still has some defects such as torque ripple , speed fluctuate and bad performance in low speed 该控制系统的转矩响应迅速，是一种有高动态性能的交流调速方法。然而，直接转矩控制仍存在转矩脉动、转速波动、低速运行性能差等缺陷。
However , the insulating nature of sulfur and polysulfides and the loss of polysulfides in the liquid organic electrolyte make lithium - sulfur batteries have very low positive active material utilization and poor cyclability 但是单质硫及其放电产物导电性差,易溶于有机溶剂,使得锂-硫电池正极活性物质利用率低、循环性能差等。
There are several limiations in existing automation software as follows : low integration , appropriative drive with poor openability , inflexible structure with poor adaptability and low reusability 现有的自动化监控软件主要存在如下一些缺陷如：功能单一，集成度低，接口专用，开放性差，适应性差，可重用程度低，稳定性差等。
From a micro - view in personal housing mortgage loan , the bank faces or will face the shortage and singleness of the fund , risk concentration , small size , short term and bad liquidation and so on 从微观上来看，目前银行在个人住房抵押贷款问题上面临或将要面临资金来源不足、单一；风险集中；规模小、期限短；流动性差等困境。
