Methods : Vitamin A extracted from ChengzhiYuyou by using cyclohexane was determined by using the derivative spectrophotometry.

Using phenylamine and acetic acid as raw materials, cyclohexane and toluene-p-acid as dehydration and catalyst respectively.

以苯胺和冰醋酸为原料, 环己烷为脱水剂,对 甲苯 磺酸为催化剂,采用正交实验法,探讨了乙酰苯胺合成的适宜工艺条件.

Organic chemists accepted the theory of the average planar cyclohexane ring.

有机化学家接受了平均平面环己烷的理论.

Such research is absolutely necessary because FA cycloid drive is offen applied in high precision transmission.

由于FA减速器常用于高精传动中,因此,该方面的研究是非常重要的.

Pinhole machining of pin gear housing is one of important procedures in manufacturing cycloid speed reducer.

针齿壳销孔的加工是摆线针轮减速器制造的重要步骤之一.

The pressure angle formulas of inside and outside profiles of the cycloid grooves are respectively deduced.

推出内、外摆线槽实际齿廓的压力角计算公式.

The cycloid-shaped gears are used widely in mini-gearing, which reduces gearing and increases its transmission ratio.

摆线轮能够减小传动器尺寸,提高传动比,在小型传动机械中得到广泛的应用.

The construction principle and driving principle of cycloid steel ball planetary transmission are analyzed.

研究了端面啮合摆线钢球行星传动的组成结构和传动原理,计算了该传动的传动比.

Our use of advanced dual-cycloid the seven countries of the patented technology and design.

本厂采用先进的双摆线七国专利技术而设计的.

The cycloid has an isochronal pendulum.

摆线具有严格的等时摆.

The use of motor speed control, automatic cycloid.

采用可调速电机, 自动摆线.

Double crank four ring-plate type cycloid drive is a new type drive.

双曲柄四环板式针摆行星传动是一种新型传动.

The vibration performance of cycloid ball planetary reducer was analyzed.

分析摆线钢球行星传动减速器的振动特性.

For this reason the cycloid is called the tautochrone.

由于这个缘故,摆线又叫做等时曲线.

First, the operating principle of cycloidal gear pump is analyzed in this article.

本文首先分析了摆线油泵的工作原理,并进一步分析了目前采用的齿形的缺点.

The cycloidal equidistant-curve worm gearset is the new type of worm and worm gear transmission equipment.

摆线等距曲线蜗轩是一种新型的蜗杆传动.

Extrusion System: frequency variable motor, cycloidal pin gear speed reducer and high qualitynitrifiedfeed cylinder screw.

挤出系统: 变频调速电机 、 摆线针轮减速箱加优质氮化料筒罗杆.

Our main products: reducer , gear motor, bevel gear, worm-gear motor, cycloidal reducer and variator.

公司主要产品有: 齿轮减速机; 蜗轮蜗杆减速机; 螺旋伞齿轮减速机; 摆线针轮减速机及无级变速器.

In 1974 Darwin was devastated by Cyclone Tracy.

1974年达尔文被热带气旋特蕾西夷为平地.

Choosing a rational cyclone is critical to acquire the best separation effect.

合理选配水力旋流器是获得最佳除砂、除泥效果的关键.

The cyclone flooded the beach cottage and did considerable water damage.

这场飓风淹没了海滨小屋,造成严重的水难.