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Should check whether the wheel rim deformation; wheel has a horizontal deflection or radial swing; shock absorber has loose or worn; turned horizontal, the ball straight rod section, or has loose steering gear assembly; spring steel U - shaped bolt, the center clamping bolts loose or whether there is any damage; Caster is correct; tire pressure is correct

应检查车轮轮辋有否变形；车轮有否横向偏摆或径向摆动；减震器有否松动或磨损；转向横、直拉杆球节，或转向器装配有否松动；弹簧钢板的U形螺栓、中心夹紧螺栓是否有松动或损坏；后倾角是否正确；轮胎气压是否正确。

Should check whether the wheel rim deformation; wheel has a horizontal deflection or radial swing; shock absorber has loose or worn; turned horizontal the ball straight rod section or has loose steering gear assembly; spring steel U - shaped bolt the center clamping bolts loose or whether there is any damage; Caster is correct; tire pressure is correct

应检查车轮轮辋有否变形；车轮有否横向扁摆或径向摆动；减震器有否松动或磨损；转向横、直拉杆球节，或转向器装配有否松动；弹簧钢板的U形螺栓、中心夹紧螺栓是否有松动或败坏；后倾角是否正确；轮胎气压是否正确。

through the analysis of the art education standard, combining the psychology to the individual enthusiasm, the author has made a discussion on the factor, the method and the way of the art education for mobilizing students' learning enthusiasm. in addition, combining some research and application to the art education theory in the course of making the art teaching practice applying the existing art teaching material, she has also expatiated that the hortative teaching has advanced the change of the art education idea and the reformation of the art teaching mode and students' learning from the angle of the course construction.

本文通过对美术教育标准的分析，结合心理学对个体积极性的调动的心理分析，论述了美术教育对学生学习积极性的调动因素、方式、方法、措施等，并结合自己在运用现有的美术教材进行的美术教学实践中，对美术教育理论的一些探索和运用阐述了幼师美术教学从课程建设的角度，运用鼓励教学的方法促进了美术教育观念的转变，促进了美术教学模式和学生学习的变革。

PIH disease pathogenesis, has not yet been clarified, according to the etiology of epidemic survey found that pregnancy causes a high incidence of disease may be related to the following factors:(1) the spirit of excessive tension or by stimulating the central nervous system dysfunction resulting in;(2) the cold season or temperature change is too large, especially at high pressure;(3) of young pregnant women or elderly primipara;(4) has chronic high blood pressure, nephritis, diabetes and other medical history of pregnant women;(5) malnutrition;(6) short body fat;(7) uterine hypertonicity, such as polyhydramnios, twins, diabetes, fetal macrosomia and the mole, etc.;(8) family history of hypertension, particularly pregnant women pregnant mother has history of hypertension.

妊高症的发病原因，至今还未阐明，根据流行病因学调查发现，妊高症的发病原因可能于以下因素有关：(1)精神过分紧张或受刺激致使中枢神经系统功能紊乱；(2)寒冷季节或气温变化过大特别是气压高时；(3)年轻孕妇或高龄初产妇；(4)有慢性高血压、肾炎、糖尿病等病史的孕妇；(5)营养不良；(6)体型矮胖；(7)子宫张力过高，如羊水过多、双胎、糖尿病巨大胎儿及葡萄胎等；(8)家族中有高血压史，尤其是孕妇之母有妊高症史者。

The method of reliability numerical simulation has been presented based on the system invalidation,whose logic hypotaxis is fault tree. By replacing the structure function of the fault tree with the cuts, the course of calculation has been simplified and the computer arithmetic has been optimized.

摘 要：提出了基于系统失效性，以故障树为仿真逻辑关系的可靠性数字仿真方法，并且利用割集对故障树中的结构函数进行了替代，大大简化了仿真计算步骤，优化了计算机算法。

Taken the three dimensional shining metal combination machine tool as an object of study in the paper,the main structure and motion form have been discussed and the work process and control requirement of machine tool have been analyzed,the movement cycle diagram of machine tool and the motion table of hydraulic pressure component have been given.Then the control system design based on PLC has been proposed,the I/O address table has been listed and the hardware and software of the control system has been de...

文章以三面铣组合机床为研究对象，通过对主要结构和运动形式的探究以及对机床的工作过程和控制要求分析，给出了机床动作循环图、液压元件动作表；并采用PLC控制系统的设计方法，列出了I/O地址分配表，进行了软硬件设计，绘制了 PLC的外部接线图和单循环自动工作流程图及其说明；实验运行结果表明，将PLC技术应用于三面铣组合机床具有整体技术及经济效益。

It has demonstrated that the method has stronger identifiability,which has also been proved by the simulation.

论证了该文方法具有更强的可辨识性，仿真实验也证明了这一点。

This article in summarizes in our country nature protection area construction achievement foundation, outlined the nature protection area to each kind of natural ecosystem, the wild biology, the domesticated species, the wild blood relationship to plant and the idioplasm resources conservation present situation, including has constructed the nature protection area for protection biodiversity various components quantity, the area, the distribution and the management; Has appraised the nature protection area to the biodiversity various components protection effect; Has analyzed the existence question and proposed that strengthens measure which the biodiversity protects.

本文在总结中国自然保护区建设成就的基础上，概述了自然保护区对各类自然生态系统、野生生物、驯化物种、野生亲缘种及种质资源保护的现状，包括为保护生物多样性各组分已建自然保护区的数量、面积、分布及管理；评价了自然保护区对生物多样性各组分保护的效果；分析了存在问题并提出加强生物多样性就地保护的措施。

This article in summarizes in our country nature protection area construction achievement foundation, outlined the nature protection area to each kind of natural ecosystem, the wild biology, the domesticated species, the wild blood relationship to plant and the idioplasm resources conservation present situation, including has constructed the nature protection area for protection biodiversity various components quantity, the area, the distribution and the management; Has appraised the nature protection area to the biodiversity various components protection effect; Has analyzed the existence question and proposed that strengthens measure whichthe biodiversity protects.

本文在总结我国自然保护区建设成就的基础上，概述了自然保护区对各类自然生态系统、野生生物、驯化物种、野生亲缘种及种质资源保护的现状，包括为保护生物多样性各组分已建自然保护区的数量、面积、分布及管理；评价了自然保护区对生物多样性各组分保护的效果；分析了存在问题并提出加强生物多样性就地保护的措施。

This article in summarizes in our country nature protection area construction achievement foundation, outlined the nature protection area to each kind of natural ecosystem, the wild biology, the domesticated spec ie s, the wild blood relationship to plant and the idioplasm resources conservation present situation, including has constructed the nature protection area for protection biodiversity various components quantity, the area, the distribution and the management; Has appraised the nature protection area to the biodiversity various components protection effect; Has analyzed the existence question and proposed that strengthens measure which the biodiversity protects.

自然保护区建设是保护生物多样性的最有效途径。至1993年底，我国共建立各类型自然保护区763个，总面积6618万hm2，约占国土面积的6.8%。本文在总结我国自然保护区建设成就的基础上，概述了自然保护区对各类自然生态系统、野生生物、驯化物种、野生亲缘种及种质资源保护的现状，包括为保护生物多样性各组分已建自然保护区的数量、面积、分布及管理；评价了自然保护区对生物多样性各组分保护的效果；分析了存在问题并提出加强生物多样性就地保护的措施。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。