有环的

The following studies have been done:① According to the technological requirements of CO2 shielded arc welding machine, a set of control system for are-welding inverter power supply is developed.

根据熔化极CO2焊机具有燃弧和短路两种工作状态，且两种状态下控制目标不同的特点，在控制系统中设计了双闭环反馈：焊接电压反馈及焊接电流变化率di/dt反馈。

Then R is an Archimedean domain if and only if a is contained in some minimal prime ideal of R for every nonzero nonunit a.

则有R是阿基米德整环当且仅当a含在R的某个极小素理想中。

Examples of network protocols are Token Ring, Ethernet, and Asynchronous Transfer Mode.

网络的协议有"令牌环"，以太网，异步传输状态等。

The HI-TECH PARK is a representative of high technology industry development in the Mainland, the China high technology industry focus on coastal areas of Guangdong in the initial stages, such as the Delta of Pearl River; Taiwanese businessman and foreign businessman of IT industry now move to the Delta of Yangtse River slowly recently, the investment area changes to Shanghai is trend now, moreover, the investment scope in Shanghai is more augmentative than before.

中文摘要大陆「高科技园区」建设是高科技产业发展重要政策的一环，大陆发展高科技产业早期以广东等沿海地区为主，但近来IT产业台商及外商均有转往长江三角洲地区如上海投资移动之趋势，且投资规模愈趋扩大。

Those pathogens were susceptible to ciprofloxacin and novobiocin, however resistance to penicillin C, streptomycin, bacitracin and polymyxin B was produced.

这些致病菌对环丙沙星、新生霉素等药物有很高的敏感性，而对青霉素、链霉素、杆菌肤和多粘菌素已经产生耐药性。

There are several types of belly rings.

有几种类型的腹部环。

The metal supporting elastic card plates optical absorption film which conductes the heat to the bottom of the heat conduction working fluid ring cavity.

金属支撑弹卡镀有光吸收膜，将热量传导于导热工质环腔管的底部。

It is shown that the closed-loop system is ultimately bounded on all signals.

理论分析证明了闭环系统的所有信号一致最终有界。

In Chapter 3, we study the boundedness of solutions and the existence of invariant tori for two kinds of isochronous systems.

在第三章中，我们研究了两类等时系统解的有界性和不变环面的存在性。

Electric remote control device adjustment is used, General monlchamus tuhung seat mounted above the keybed-iron plate, covering a hard plastic, and a flexible plastic to prevent ink seepage, each iron plate is fitted with a front end, eccentric roller roller bearing rings on both sides of the plastic top tight in tuhung roll, bucket seat is fitted with a total of 30 to 32 of these eccentric roll, each of which the width of the eccentric roll and 30 ~ 32 mm, when servo motor signal receiving console by mechanical structure, change the eccentric roller and rollers of the gap, so that once the monlchamus tuhung-high ink, led, according to the extruded plastic clearance form different deposit, attachthemselves in tuhung roll, roll over the ink input ink this structure is characterized by correctly restrict each supply the location of the monlchamus region of adjustment on the nearby monlchamus area for inking, plastic affected by friction, easy-to-wear constantly, you need to change on a regular basis.

而电不静调度是用遥控安拆来举行的，凡是的不朱斗座底下拆有一排琴键式铁板，暗不天包围一张软塑料片，而塑料片具有不塑性，制止油不朱的渗漏，每块铁板的前端拆有一个公道辊，辊双方的支承环不兵塑料片底不松在不朱斗辊上，不朱斗座上共拆有30～32个公道辊，每个公道辊的宽度约为30～32mm，当伺服电机剥夺把持台的暗记后，堵住板滞布局，保持公道辊与不朱辊的间隙，因此当不朱斗辊不静弹时，不静员油不朱挤不抬塑料片，不梢据间隙巨细变成差别不朱层厚度，附着在不朱斗辊上，堵住传不朱辊不输出匀不朱机构，这栽布局的特不面是可以不差不天不拘每个不求不朱区的场所，制止一个不朱区的调度差附近不朱区不求不朱度爆发感化，塑料片受到不停摩擦，难磨损，需按期调换。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。