查询词典 double-entry system

At the same time, it performs control operation such as close switch, open switch, reset. In order to cut down checking period,a tributary station structure with double singlechips is designed. It is connected between computer and intelligent collector. It can implement both-way communication by a double-port RAM chip. In accordance, the system' s whole performance got increase.

为了缩短地面计算机依次巡测所有智能采集器的时间，设计了双单片机结构的变电所分站，变电所分站在计算机和智能采集器之间，用一片双口RAM进行数据暂存和缓冲，可以实现双向通信，在整个系统结构中起着承上启下的作用，从而提高系统的整体性能，此外，分站还能脱离主机独立工作。

In order to realize real-time control, the paper studied two kinds of closed-loop control structures such as based on scalar quantity and double closed-loop control structure, moreover established their control structure, then simulation to the double closed-loop control structure of voltage source type matrix converter. The simulation results indicate that reach the real-time control requests, the system dynamic response performance is good, the converter input output can be adjusted in the short time.

为实现电压源型阵变换器的实时控制要求，论文对基于标量控制和双闭环的两种电压源型矩阵变换器闭环控制结构进行了研究，分别建立了这两种闭环控制的控制结构，并且对电压源型矩阵变换器的双闭环控制结构进行仿真，仿真结果表明达到了实时控制的要求，系统的动态响应性能好，变换器的输入输出能在较短的时间内达到调节。

The results obtained from the simulation testing by double digital signal processing system confirm that the DTC system fits for synchronous motor with screw propeller by three level inverter and the system operation performance is perfect.

采用双DSP系统对电动机带螺旋桨负载的推进系统进行了半实物仿真，结果表明文中提出的控制策略能对三电平逆变器供电的同步电动机实施高性能的调速控制。

In addition, a new synchronization scheme, Double-Timestamp Transaction-Level Synchronization model is put forward to solve the synchronization problem under the 3-tier replication architecture (Mobile Client - Synchronization Server - Database Server). DTSTLS utilizes a novel double-timestamp strategy to promote the efficiency of synchronization. Besides, it ensures serializability and consistency of the mobile database system through transaction-level conflict reconciliation.Mobile transaction processing is another key technology to provide efficient information service in mobile computing environment.

通过引入一种乐观并发控制方法与两段锁协议相结合的移动事务处理机制，本文重点解决了交互式长事务的问题，并提供了对移动主机任意移动性和数据库系统一致性的支持；在移动对象数据库方面，本文提出了一种新的移动对象数据库模型—离散时空轨迹移动对象数据库模型，重点阐述了DSTTMOD模型中的位置表示方法及位置更新处理策略，并分别给出了基于GRID文件和基于QUAD树的移动对象索引算法。

Transfer Combined cam box single or double system can independly work and one system can tranfer the stith while the other system keeps knitting.

翻针 三角复合式设计，单/双系统皆可单独或同时翻针，也可一系统翻针，另一系统编织，达到高效生产。

Needle and selection tracking Combined cam box single or double system can independly work and one system can tranfer the stith while the other system keeps knitting.

编织系统单机头，双系统针床移位采用AC伺服马达控制，移针范围2英寸之间，同时具有微调功能

The call developmental process of Psittacula agapornis consists of five instinct phases according to its call character. In the first phase （congenital cal1 phase, CCP, 0~12 day of age）, the juveniles only produce single syllable with short syllable length. The second phase（blank-model-forming phase,BMFP, 13~30 day of age） is important for formation of vocal learning pathways. During this phase, the calls characterized by more and longer syllables. In the third phase （call-model-forming phase,CMFP, 31~45 day of age）, the call development is guided by a model system for vocal learning, vocal learning is engendered so that some calls with multi-syllables with UP1 are produced, principal frequency has increased about by 920 cent, the number of note is double that of second phase. The short-term memories are transformed into long-term memories in the forth phase （call-feedback-learning phase,CFLP, 46~90 day of age）. The call of juveniles is a close match to tutor call which accompanied by double various sounds with BS and UP1, and more resonance components were formed. Second principal frequency has increased about by 970 cent, the number of note increases by 2.6~3.0 times. During the fifth phase （excellent call phase,ECP, after 91 d）, vocal motor pathway is developed and the calls are accompanied with most stable, harmonious vari-tone and complex repertoire.

牡丹鹦鹉的鸣声发育分为5个时期。0~12 d为先天性鸣声期，鸣声特征为以基本音为主音的单音节单音调声，声长短。13~30 d为空白模板形成期，鸣声特征为以基本音为主音的多音节单音调声，声长和音量显著性增加，表明发声学习通路开始形成。31~45 d为鸣声模板形成期，鸣声特征为以第1陪音（UP1）为主音的多音节单变调声，声长和音量显著性增加，主音频提升约920音分，涵盖的律音数增加1倍，表明发声学习模板逐渐形成，发声学习开始。46~90 d为鸣声反馈学习期，鸣声特征为以BS和UP1为主音的双变调声，声长和音量显著性增加，主音频涵盖的律音数增加2.6~3.0倍，第2主音频提升约970音分，表明稳定模板逐渐形成，短期记忆逐渐向长期记忆转化。91 d后为完美鸣声期，鸣声特征为以UP1为主音的复合变音调声，声长、音量、主音频的提升和涵盖的律音数都趋于平稳，鸣声稳定而和谐，表明发声运动通路基本形成。

Main selling products: laminated pot; sterilization pot; warm water tank; stainless steel tank; heterogeneous machines; Colloid Mill; double-effect concentrator; Vacuum Degasser; cleaning system; ingredients tank; fermentation tank; dilute with tank; reaction vessel; None bacteria tank; hot and cold cylinder; of sugar pot; frame filter; milk cans; deployment tank; double-filter; diatomaceous earth filter; microporous membrane filter; titanium rod filter ; Quartz sand filter; ultra-high temperature instantaneous sterilizer; sand filter rod; activated carbon filters; warm water tank; hollow fiber ultrafiltration; stainless steel self-priming pump; stainless steel sanitation pumps; milk pump; beverage pump; explosion-proof health pump; Stainless steel centrifugal pump; screw; energy-saving oven

主要销售产品：夹层锅；杀菌锅；保温水箱；不锈钢罐；均质机；胶体磨；双效浓缩器；真空脱气机；清洗系统；配料罐；发酵罐；稀配罐；反应釜；无菌贮罐；冷热缸；化糖锅；板框过滤器；奶罐；调配罐；双联过滤器；硅藻土过滤器；微孔膜过滤器；钛棒过滤器；石英砂过滤器；超高温瞬时灭菌机；砂棒过滤器；活性炭过滤器；保温水箱；中空纤维超滤；不锈钢自吸泵；不锈钢卫生泵；奶泵；饮料泵；防爆卫生泵；不锈钢离心泵；螺杆泵；节能烘箱

When the parameter matching of the wheel location is improper, namely, the matching between the wheel toe-in and the wheel camber angle is ill-suited, abrasion of the two wheels of the same steering axle is inside or outside simultaneously, because of wheels sideslip. However, when double-front-axle steering system failure take place, abrasion of the two wheels of the same steering axle is in the same side, and that, tyre abrasion direction of front and back steering axles is rightabout. That is to say, if tyre abrasion of front steering axle lie in the left side, tyre abrasion of back steering axle lie in the right side to a certainty, which is the rule of tyre abrasion of double-front-axle steering automobile.

当定位参数匹配不当时，同一转向轴上左右车轮的磨损部位都在内侧或外侧，原因是左右车轮在滚动的同时还要产生相向或反向侧滑；而双前轴转向汽车前、后转向轴引导汽车转向方向不一致时，同一转向轴左、右车轮的磨损部位都在同一侧，而且前、后转向轴上的车轮偏磨损方向正好相反，即如果前转向轴左、右车轮磨损部位在左侧或右侧，那么后转向轴左、右车轮磨损部位就在右侧或左侧，这是双前轴转向汽车特有的轮胎磨损规律。

Single or double-acting,three position double-actingdouble direction location,auto resetetc,on which relief valva and pressurelimiting valves may be added,on each port to restrictpressure in the port and avoid the damage caused by higher impact pressure to the system..

该阀的每一工作阀片可分为三位单、双作用；三位双作用双向定位、自动复位等不同功能，可加装安全阀，并可在每一个工作油口加装过载阀，限制该油口压力及防止冲击压力过高对系统引起的损坏。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。