查询词典 arc hyperbolic function

By using a self-made CCD Optical Transient Image System , the vacuum arc images of long gap (40 mm) at various moments are taken photos, and the regular pattern of the vacuum arc mode transition is studied.

应用设计制作的真空电弧图像瞬态摄像系统，对长间隙下（开距40mm不同时刻的真空电弧图像进行了拍摄，获得了真空电弧形态演变过程。

A comparative study of porosity, oxide coontents, bond strength and wear resistance of 3Cr13 stainless steel coatings deposited by high velocity and regular arc spray processes was carried out. An orthogonal and rotational regression experimental method and an ordinary single-factor experimental method were adopted to evaluate the coating hardness with respect to the effect of processing parameters. The quantitative formula of processing patameters with coating hardness was obtained by means of microcomputer.The results show that, compared with the regular arc spray process, a dense?

对比研究了3Cr13不锈钢高速电弧喷涂涂层和普通电弧喷涂涂层的孔隙率、氧化物含量、涂层结合强度和滑动磨损性能，并采用多因素正交旋转回归设计和单因素对比试验的方法研究了高速电弧喷涂工艺参数对3Cr13不锈钢涂层显微硬度的影响，用微机回归得到了喷涂工艺参数与涂层硬度之间的定量关系式。

The results show that, compared with the regular arc spray process, a dense coating with lower porosity, higher bond strength and higher oxide contents were produced by a newly developed high velocity arc wire spray process.

结果表明，和普通电弧喷涂涂层相比，高速电弧喷涂涂层组织致密、孔隙率低、涂层氧化物含量增多，涂层－基体界面结合强度大于40？

Coating with lower porosity, higher bond strength and hhigher oxide?contents were produced by a newly developed high velocity arc wire spray process.The bond strength in higher than 40MPa, which is increased by 52 percent than that of regular arc sprayed coatings.

结果表明，和普通电弧喷涂涂层相比，高速电弧喷涂涂层组织致密、孔隙率低、涂层氧化物含量增多，涂层-基体界面结合强度大于40MPa，比普通电弧喷涂提高了52％。

The property of no film, micro-arc oxidation film and chromate film influenced the corrosion of joint samples which was analyzed in same corrosive conditions by calculate the corrosion effects and observe macro-photograph micro-photograph. The corrosive regularity influenced by corrosive condition factors and the corrosion resistance of different thickness of micro-arc oxidation film also be compared.

采用减重法计算连接腐蚀效应并观察试样表面的腐蚀宏观及微观形貌，对比分析了无表面处理、铬化处理及微弧氧化处理在相同盐雾腐蚀条件下对减小镁合金-钢连接腐蚀作用的差异性以及盐雾腐蚀条件参数对镁合金-钢连接腐蚀的影响规律。

During the interruptering circuit process of MCCB, two phenomena exist: electric arc back strike and arc restrike.

在塑壳断路器开断过程中存在着两种现象，电弧背后转移和过零重燃现象，这两种现象都影响着断路器的开断过程，并且都与灭弧室内电场分布有关。

For pitting surface of LY12 at different humidity in marine atmosphere, Nyquist Graph was single arc of capacitance resist and the shape of arc was identical with retractile real part.

其厚水膜高Cl-自腐蚀体系的Nyquist图是实部收缩的单一容抗弧。

Thus, the spherical-crown and saddle-shaped surfaces were demonstrated. Consequently, the basic rules and key technology of bending forming using plasma arc in practical work were obtained and the application level of the flexible forming using plasma arc had been further improved. The effects of the main parameters including power, scanning speed, scanning distance and scanning sequence had been investigated.

对成形中出现的棱角效应进行了机理分析和数值计算，结果表明棱角效应是板材沿扫描线方向受几何约束产生了较小的压应变及在扫描线上、下表面的收缩量不同所造成；提出了通过分段扫描解决棱角效应的方法，明显提高了成形质量。

When the welding current is added, on the one hand,the section of arc will more or less increase, so the fusion width will increase; on the other hand, the depth of arc crater will increase.

焊接电流增加时，一方面是电弧截面略有增加，导致熔宽增加，另一方面是电流增加促使弧坑深度增加。

The effects of arc unstable, arc characteristics and commutating circuit parameters on the process of self-excited oscillation in current commutation are discussed in detail.

理论分析和模拟计算的结果说明了不同的开断装置电弧特性和转移回路参数对自激振荡过程的作用，为高压直流断路器转移回路的参数设计提供了有效的分析和计算工具。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。