查询词典 arc cotangent

Igneous rocks of Jiyang depression show typical reflecting features on seismic profile. Tabular reflection seismic facies, arc reflection seismic facies and hummocky or mushroom reflection seismic facies are the three main facies.

济阳坳陷火成岩在地震剖面上呈现典型的反射特征，其反射地震相主要有板状反射地震相、弧状反射地震相、丘状或蘑菇状反射地震相等三种。

Based on the first law of thermodynamics and the law of hydrokinetics, the mathematic model of the pressure characteristic was established for the 252 kV self-extinguishing SF6 circuit breaker, and the pressure characteristic curve of the arc-extinguishing chamber can be obtained through computation.

高压自能式SF6断路器是近年来开发的一种基于较新灭弧方式的产品。自能式灭弧室在开断过程中通过电弧的加热，使灭弧室内的气体压力增加，产生足够的压力吹弧。电弧加热气体的方式可以减小灭弧室的体积并且降低操动机构的操作功，使开断过程更加稳定可靠[1-2]。对于灭弧室来说，气吹的压力是一个很重要的参数，直接影响灭弧室的开断能力。

By contrast, it is proved more superior that the spline curve is used to match hyperbolic line instead of arc, and the problem about drawing of hex nut is solved in AutoCAD which was adopted in textbook of engineering drawings.

解决了工程制图中螺母近似画法在AutoCAD中应用时出现多线相交的问题，从而可以在符合实物投影的基础上形成一个比较好的统一改进近似画法规范。

Fire and water are the theme of the Tang Dynasty Club. It is these two completely different feelings that show us "intoxication and shadiness" and allow the characteristics of the fiber, LED and acrylic materials to express completely: the arc line made up of many starry LEDs along the wall can lead the guests to different rooms; the straight and curved ￠10 fibers on the wall make the black core barrel, which is originally monotonous, bright and rich; the fibers on the ceiling, corresponding to the LEDs on the glomerocryst stone floor, make people have the idolum of stars and autumn water.

火与水是唐朝会的主引，正是这两种截然不同的感觉体现出的"迷醉与暧昧"，让光纤、LED和压克力的材质特性得到了尽情的发挥：地面的点状LED顺着墙体的弧线引导客人进入不同的空间，而墙面曲直两种￠10光纤使原本单调的黑色核心筒体墙显得亮丽和丰富，天花的光纤对应着聚晶石地面的LED，给人繁星、秋水的幻象。

The procedure and characteristic of the arc discharge ,feature of ignitron,firing way,structure features and its application are described in the paper.

汞弧光放电是一种低气压气体放电现象，放电电流密度大。

Instead, they talked about how they tried too hard to rile up their crowd, an ill-suited strategy that resulted in them missing 22 of 27 shots from outside the arc and shooting a playoff-low 39 percent while losing at home for the first time in 75 days.

他们需要反省的是，在75天以来，这是他们第一次在主场有如此糟糕的季后赛命成绩：27个球投失了22个，命中率39%。而且，他们需要挽回主场球迷的心。

The impingement free range of movement can be defined as well as the stable arc of movement.

不出现髋部撞击的自由活动范围界定为稳定的活动弧度。

The implanter equipped with intense current, pulsed cathodic arc metal plasma sources which have both strong coating function and gas and metal ion implantation function. Its pulse high voltage power supply can provide big output current. It can acquire very good implantation dose uniformity.

第三代多功能等离子体浸没离子注入装置的强流脉冲阴极弧金属等离子体源既具有强的镀膜功能，同时也具有强的金属离子注入功能；它的脉冲高压电源能输出大的电流；并可获得高的注入剂量均匀性。

A new-type composite gaseous-metallic ion implanter was developed for fully pulsate circuit by introducing the gaseous plasma induced by the pulse which is restrained by megnetic field so as to realize the gaseous and metallic arc discharge.

本文报道了新型全脉冲电路气体－金属复合离子注入源的结构和特性，采用在磁场约束条件下的脉冲引发的气体等离子体，分别引发气体放电和金属弧放电。

The sheet possesses good heat, cold and water resistance and incombustibility. Besides, excellent dielectric properties including proof tracking and arc resistance.

该板具有耐热性，耐寒性，不燃性，耐水性，电气绝缘性好等特征，此外，电气特性(由温度而产生的抵抗值的变化很小)，耐漏电起痕性，耐电弧特性方面也非常优秀。

Some of them were ligated to the plasmid vector pCR 2.1 andsequenced,respectively.

将所获DNA片段克隆到pCR2.1载体进行测序，并与基因组数据库进行同源性比较。

Thinking since Google owns Blogger, I would be able to escalate this issue to the support team.

自谷歌的思考拥有Blogger的，我将能够缓解这一问题的支持团队。