Medical cyclotron is used to product the positron radionuclide for synthesizing the medicament needed in PET/ CT imaging.

The choice of medical cyclotron

医用回旋加速器的选择

3D FEM analysis of the magnet of a small medical cyclotron was made by using ANSYS.

以一台小型医用回旋加速器为例，使用ANSYS软件进行磁铁分析，对有限元实施中的一些问题进行了研究。

Applied Research of Dual-beam Technology to Produce Radioactive Nuclide in Medical Cyclotron

医用回旋加速器双束流技术生产放射性核素应用研究

Safety of radiation protection of medical cyclotron

医用回旋加速器的放射防护安全

Principle and application of medical cyclotron

医用回旋加速器原理及应用

A Discussion on Construction Supervision and Quality Control of Bridge Foundation, Bridge Abutment and Wingshelter Construction and Quality Supervision of Cyclopean Concrete Retaining walls

谈片石混凝土桥基、台身和翼墙施工监理质量控制

The principal findings are: It is important to the mesoscale systems that a column of cyclonic vorticity is gener-ated and developed within an unstable and warm air with moist, while a persistently in-tensive ascending motion is maintained with whole vorticity column.

主要结果指出：气旋性涡柱在不稳定暖湿气柱内生成和发展，以及与整个涡柱共存的上升运动的持续加强，对暴雨中尺度系统的发展具有重要的作用；

The results showed that in this "cyclonic dust storm" process the cyclonic cold front was the direct and important portion of cyclone system inducing the dust storm.

结果表明在本次锋面气旋型沙尘暴过程中，气旋冷锋是引发强沙尘暴的主要系统，冷锋过境对沙尘暴的触发作用远强于气旋发展。

The areal distribution of the cyclonic circulation with height of the experimental storms has also been measured, also agreeing quite well with the observed ones.

还测量了各层气旋性环流所占面积随高度的分布，与实况也相似。

There is a cyclonic circulation in the northern part of the SCS, and its strength and scope decrease with the depth increases.

在南海北部存在一个气旋性环流，这个环流的强度和范围随深度增加而减小。

There is a cold centre in this cyclonic circulation, and its position moves slightly the south with the depth increases.

该环流的冷中心位置随深度增加稍向南移。

The northern SCS is dominated mainly by a cyclonic circulation system.

南海北部环流系统主要受气旋环流所支配。

There is basically a large cyclonic circulation system in the middle north area.

中北部海区（北纬12度以北）基本上为&气旋式大环流系统；

The superadiabatic state is frequently appears over the plateau, it would be favorable to the development of the cyclonic circulation.

高原上经常出现超干绝热现象，这将使得高原上的气旋性环流加强幅度比其他情况下更大；

The strongest cyclonic circulation and vorticity are at about 700 mb.

气旋性环流和气旋性涡度在对流层中层的700毫巴附近最强。

Results show as follows. The heavy rain taking place in the west side of Dabie Mountain is caused by β-scale cyclone on α-scale shear, and the heavy rain near the boundary area between Hunan and Hubei provinces is caused by cyclonic wind perturbation.

结果表明：（1）大别山西侧的暴雨由中α尺度切变线上中β尺度低涡造成，湘鄂交界地带的暴雨由切变线上气旋性扰动造成。

It is shown that the inner and outer regions of Tropical Cyclone have different governing equations. The inner region is governed by the cyclonic wind and an evolution equation, the outer region is governed by the gradient wind and another evolution equation.

研究表明，热带气旋内区和外区有不同的控制方程，内区受旋转风和一个演化方程制约，而外区受梯度风和另一个演化方程制约。

The reasons are as follows: the evolution of the northern cyclonic circulation system of the SCS mainly attributes to the existence and southbound extension of the cyclonic wind stress curl in the northwest of the SCS.

原因如下：南海北部气旋型环流系统的演变主要归于南海西北部气旋风应力涡度的存在和南扩。

Analysis of the thunderstorm formation on a Mei-yu Front cyclonic wave

一次梅雨锋气旋波雷暴天气生成的剖析

Dedusting function and design calculation of vertical cyclonic water film collector

立式旋风水膜除尘器的除尘性能与设计计算