触发器

In the digital circuit, the digital cymometer is thecircuit of time sequence, it is mainly formed by trigger withmemory function.

在数字电路中，数字频率计属于时序电路，它主要由具有记忆功能的触发器构成。

DDL triggers can be associated with the database or with a schema.

DDL 触发器可以定义在数据库或方案上。

The data transformation platform is designed in accordance with modularization, which masks the access from upper application by data wrapping module and submits DataSet objects to upper application. DataSet exchange module finishes heterogeneous data exchange by using XML capsulation of DataSet. For the synchronization process of heterogeneous data, it uses table trigger and Updates Information Table to capture change from source database table. The Update Information Table keeps the DML statements operated on tables which need to be synchronized. In the course of synchronization, synchronization module extracts DML operation field from Regenerate Information Table DataSet. At last, it updates the table fields of destination database by using command object.

数据转换平台的实现采用模块化设计，通过数据包装模块屏蔽上层应用对数据库的访问和将包装好的数据集对象提交给上层应用来实现，数据转换模块利用DataSet对XML的封装完成底层异构数据的交换；在异构数据同步的处理上，采用触发器结合更新信息表的方式获取源数据库上表内容的变化，更新信息表保存作用在同步表上的DML语句，然后在同步的过程中利用数据转换平台的同步模块对更新信息数据集中的DML操作字段进行数据抽取，最后通过命令对象将变化更新到目的数据库的表字段中。

The main product and the operation range: the paperless recorder\the pressure verify meter、the libration regulater、the multi-channels detecter、the intelligent PID regulater、the digital eletronic meter、the phasic triger、the power regulater、the thermocouple、the Thermo-resistant、the boiler control、the sewage dispose、the complete set of eletric auto engineering empolder、design、fixing.

公司主要产品及业务范围：无纸记录仪、压力校验仪、振动变送器、多路巡检仪、智能PID调节仪、数字电工表、移相触发器、电力调整器、热电偶、热电阻、锅炉控制、污水处理、电气及自动化工程开发、设计、成套。

The main product and the operation range: the paperless recorder、the pressure verify meter、the libration regulater、the multi-channels detecter、the intelligent PID regulater、the digital eletronic meter、the phasic triger、the power regulater、the thermocouple、the Thermo-resistant、the boiler control、the sewage dispose、the complete set of eletric auto engineering empolder、design、fixing.

公司主要产品及业务范围：无纸记录仪、压力校验仪、温度校验仪、振动变送器、多路巡检仪、流量积算仪、智能温控表、数字电工表、电阻分选仪、称重显示仪、移相触发器、电力调整器、涡轮流量传感器、热电偶、热电阻、锅炉控制、污水处理、电气及自动化工程开发、设计、成套。

By example analysis and experiment result compare,it introduces the usage and peculiarity of Multisim 2001 software platform of EDA technology in design type of experiment study on digital circuits,the advantages and disadvantages of EDA technology experimenthave been compared with actual operation,the important of combining"imitation experiment"and"material experiment"in design type of experiment of digit circuit teaching is put forward in this paper.

目前，国内高校的数字电路实验教学模式主要以2种方式进行：一种是完全采用常规的TTL逻辑器件(如逻辑门、触发器等中小规模集成电路)进行硬件连线测试，大多采用面包板或由多个双列直插座组成的各种实验箱。这种方式容易出现器件接触不良，接线不慎而烧坏芯片、电源等故障，学生实验课时得不到有效利用，影响对学生综合设计性实验能力的培养与提高。

The previous version of the circuit used a 4013 dual flip-flop to form the narrow loading pulses.

以前版本的电路采用了4013双触发器，形成狭隘的加载脉冲。

A new type of ternary edge-triggered flip--flop based on modular algebra is proposed and applied to thedesign of timing logic circuits.

本文给出了基于模代数理论的三值维持阻塞触发器，并将其应用到时序逻辑电路设H中。

A novel edge-triggered D-flip-flop based on a resonant tunneling diode is proposed and used to construct a binary frequency divider.

提出了一种基于共振隧穿二极管的新型边沿触发D触发器并将之用于构成二进制分频器。

The register is an edge-triggered D-type flip-flop.

登记册是一个边沿触发的D型触发器。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。