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The basic relationship between the the first half-wave peak value of transient current and the initial firing angles is found by means of analytical method.The practical method is put forward to determine the initial two-phase and the third phase firing angles with the limiting value and the space vector varying track of transient current.And then the subsequent series of firing angles with the even step are calculated by using the speed at the time of re-switching.The suppressive effect to the inrush current is verified with simulation and experiment of rapid soft re-switching control,by which the influence of different speed to rapid soft re-switching course is analyzed besides.3 To analyze the power loss for typical periodically variable running load and deeply study the energy-saving principle and control mode of the intermittent power supply approach. Futhermore,the novel integrated energy-saving control technique is developed on base of the intermittent power supply approach.

通过解析方法找到快速软投入初始触发角与瞬态电流首半波峰值加热板之间的基本关系，进而提出了由限流值和空间向量轨迹确定初始两相和第三相触发角的方法，并以固定步长均匀递减的方式由投入时转速计算出其它后续触发角；结合仿真和实验验证了快速软投入对冲击电流的抑制作用，并分析了不同转速下投入时对电源快速软投入过程的影响。3对典型周期性变工况负载特性进行能耗分析，深入研究断续供电节能机理和控制模式，并进一步发展了以断续供电为主的综合节能控制新技术。

The basic relationship between the the first half-wave peak value of transient current and the initial firing angles is found by means of analytical method.The practical method is put forward to determine the initial two-phase and the third phase firing angles with the limiting value and the space vector varying track of transient current.And then the subsequent series of firing angles with the even step are calculated by using the speed at the time of re-switching.The suppressive effect to the inrush current is verified with simulation and experiment of rapid soft re-switching control,by which the influence of different speed to rapid soft re-switching course is analyzed besides.3 To analyze the power loss for typical periodically variable running load and deeply study the energy-saving principle and control mode of the intermittent power supply approach. Futhermore,the novel integrated energy-saving control technique is developed on base of the intermittent power supply approach.

通过解析方法找到快速软投入初始触发角与瞬态电流首半波峰值之间的基本关系，进而提出了由限流值和空间向量轨迹确定初始两相和第三相触发角的方法，并以固定步长均匀递减的方式由投入时转速计算出其它后续触发角；结合仿真和实验验证了快速软投入对冲击电流的抑制作用，并分析了不同转速下投入时对电源快速软投入过程的影响。3对典型周期性变工况负载特性进行能耗分析，深入研究断续供电节能机理和控制模式，并进一步发展了以断续供电为主的综合节能控制新技术。

When walking,as we step one foot forward,we lift the other toot up.in the same way,we should let go of yesterday and focus on today.

前脚走，后脚放意即：昨天的事就让它过去，把心神专注今天该做的事。

Final part put forward to press the special sex that supplies catenary content to flow relation of cooperation of reasonable and certain business and the concrete step that quicken traditional freight company to shed company transition pace to modern other people.

最后部分提出了按供给链物流的专用性合理确定企业合作关系及加快传统货运企业向现代物流企业转型步伐的具体措施。

Based on principle of protection a point and a line on the ground,this paper puts forward the principle of similar ellipse method to design coal pillar for protection of buildings,and the method and step are proposed.

在保护地面上一点、一条直线原理的基础上，提出了似椭圆法留设保护煤柱的基本原理，给出了留设保护煤柱的方法与步骤。

Based on the discussion about fitting normal error's definition, constitution and properties, it was suggested that fitting normal error represented the error of fitting plane linear in old highway. The accuracy index of fitting plane linear in old highway based on fitting normal error was set up. The algorithm of swinging approach on compressible size step that could be used to calculate the fitting normal error was put forward. The method and basic norm of decision about fitting normal error's symbolic were discussed.

在论述拟合法线偏差定义、构成及性质的基础上，提出以拟合法线偏差表征旧路平面线形拟合偏差；建立了基于法线偏差的旧路平面线形拟合精度指标；提出了采用步长压缩摆动趋近法计算拟合法线偏差的算法，并就拟合法线偏差的符号判定准则及方法进行了讨论。

In order to achieve the transfer of hydrogen from the biomass to the coal and improve the quality of the liquid derived from coal pyrolysis, based on the current research fruits, the new pyrolysis way that use two-step pyrolysis of biomass and coal is brought forward.

本文作者结合现阶段的研究成果，提出生物质与煤采用两步法热解工艺的思路，使生物质材料的氢有可能转移到热解煤的产物中，以改善煤热解过程中液体的性质，对今后生物质与煤及聚合物共热解的研究方向提出了自己的建议。

In order to attain this goal our Party and the people throughout the country must develop the movement for resistance to Japan and for democracy still more extensively, must go a step further in criticizing the Kuomintang, pushing it into action and keeping up the pressure, must unite with all those within the Kuomintang who stand for peace, democracy and resistance to Japan, and must help the hesitant waverers forward and throw out the pro-Japanese elements.

这就需要我们和全国人民更大地发展抗日和民主的运动，进一步地批评、推动和督促国民党，团结国民党内的主张和平、民主、抗日的分子，推动动摇犹豫分子，排除亲日分子，才能达到目的。

This text develops the tool and dialog box DCL languages to carry on the simple introduction to the AutoCAD two times, integrated the process to carry on the detailed introduction to the Visual Lisp and dialog box DCL language, and make use of the whole process that the Visual Lisp integrates with the dialog box DCL language the realization manufacture parabola, carrying on the detailed analysis to the concrete step, putting forward the basic design way of thinking, the end give make use of the living solid example of severals of the parabola.

本文对AutoCAD的二次开发工具和对话框DCL语言进行了简单的介绍，对 Visual Lisp与对话框DCL语言整合过程进行了详细的介绍，并利用Visual Lisp与对话框DCL语言整合实现制作抛物线的全过程，对具体的步骤进行了详尽的分析，提出了基本的设计思路，最后给出了利用抛物线的几个生活实例。

Therefore, on the base of previous work, improvement is brought about and digital variable displacement axial piston pump controlled by SCM and driven by step motor is brought forward in the subject.

因此，本课题在前人的基础上，对其进行改进，提出了利用单片机控制，步进电机驱动的数字变量轴向柱塞泵。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。