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1. A modified cationic polyhydroxy-compound gel ling fluid as water shutoff is developed.This type of gel has better selectivity.Its field tests are descri bed and the results are satisfactory.

介绍了一种利用阳离子化改性多羟基化合物进行堵水调剖的方法，具有一定的选择性，在油田应用取得了良好效果。

2. The authors descri be 2 cases of Timothy grass aspiration with established pulmonary infection that were successfully managed by bronchoscopic removal with subsequent improvement.

作者报道了两例因梯牧草吸入导致肺部感染患者,使用改良的支气管镜成功地将梯牧草从气道中取出的病例。

3. Several improved machines have been developed upon intruduction of sort ,adoptive range and performance of plate shear used in unwinder line,with descri ption of application future.

在介绍了开卷线上使用的剪板机的种类、适用范围和性能特点的基础上,推出了几种改进机型,并论述了它们的应用前景。

4. The hardware circuit and software desig ned were g iven,the measure method of position and velocity was descri bed.It was shown by experiment that the use of the AVR sing le-slice pro cess can impr...

实验表明采用这种单片机设计的伺服系统能提高系统实时性,简化接口硬件,提高抗干扰能力,在实际应用中可以取得较好的控制效果。

5. The paper descri bes the present cunditions of the eci fragile areas of west china and discusses the patherns of eco emigration in the are as and isswes of reparing and manasement of them.

文章主要概述了我国西部生态脆弱区的现状 ,分析、探讨了西部生态脆弱区实施生态移民的方式及对西部生态脆弱区的治理措施。

6. The outline of Crustal Movement Observing Network in China is briefly introd ucted and its important applying prospects for study of Earth science are descri bed.

简要地介绍了中国地壳运动观测网络的概况和目前的进展，论述了地壳运动观测网络在地球科学研究中的重要作用主应用前景。

7. Chlorization-hydrolysis,electro oxidation and a method using p-nitro-toluene as starting material were descri bed mainly.

重点介绍了氯化水解法、电化学氧化法及对硝基甲苯法。