This paper introduces the developing of a cylindrical gear drive with dual convex-concave mesh& the bidirectional circular tooth gear drive.

Bidirectional Circular Tooth Gear Drive

双向圆弧齿轮传动

Bidirectional Drive Between Administration And Administrative Quality

管理和管理质量的双向驱动

The inner part of the utility model is composed of a submodule control circuit, a bidirectional thyristor, a relay and other parts which are formed by making use of hybrid technique.

内部由用混合技术构成的包括子模块的控制电路、双向可控硅、继电器等部分组成。

Combining the advantages of both technologies, a kind of distributed multi-antenna bidirectional cooperative relay transmission scheme.

本文结合这两种技术的优势，研究了一种分布式多天线双向协作中继传输方案。

The network can transmit one bidirectional relay voice or two bidirectional direct voices, and data packets transmission supports both unicast and broadcast with automatic routing. Secondly, the TDMA networking protocol is implemented on the VHF frequency hopping radio.

该协议支持最多32个节点组网，可实现一路中继双向话音或两路直达双向话音，支持单播及广播数据报文和自动路由。2.在超短波跳频电台上实现了该TDMA组网协议。

Combined with actual example, transparent bidirectional communication between CAN bus and the USB part of computer is realized by single chip processor and CAN controller. Moreover, the methods for software design and hardware realization are devised in this paper.

并结合开发实例，用单片机和CAN控制器实现了计算机USB口与CAN之间的两者之间的透明双向通信，给出了硬件电路的实现和软件设计的方法。

So GPRS/ 3G wireless module can be attached on bus terminal to realize wireless data transmission and bidirectional communication between mobile bus and remote monitoring and dispatching service center.

所以可以在公交车车载终端挂接GPRS/3G无线模块，进行无线数据传输，实现移动公交车和远程监控调度服务中心的双向通讯，使远程监控调度服务中心能够实时地对移动公交车进行无线跟踪监控。

How does GPRS/ 3G wireless module to achieve bidirectional communication between the bus terminal and the remote service center.

GPRS/3G无线网络模块如何实现将车载终端与远程服务中心的双向通信，远程服务中心实现对公交车的监控与调度。

They are particularly attractive for implementing buffer registers, I/ O ports, bidirectional bus drivers, and working registers.

他们为实现缓冲区寄存器，I/O端口，双向的总线驱动程序，并且工作的寄存器是特别地吸引人的。

A component consisting of four separate receiver-transmitter combinations, designed for use with a bidirectional bus system, such as a data bus.

一种由四个独立的接收-发送器组合而成的部件，设计用于双向总线系统，如用在数据总线中。

Patience Pays Off: Bide Your Time And Save

耐心等待回报：付出时间，节约了成本

For now, bide your time and make sure your work is flawless.

现在静静的守候同时确保你的工作完美无瑕。

All you need to do is bide your time until you find one that will work for you and your billfold.

所有您需要做的是等待时机您的时间，直到找到一个适合你和你的皮夹。

So stay put and bide your time.

所以，呆在原地，等待时机。

Metal-Organic coordination polymer is formed by self-assembly through coordination bond between bidentate or multbentate organic ligand and central metal ion.

金属有机配位聚合物是通过含给电子基团的双齿或多齿有机配体（）一种或几种中心金属离子（）过配位键自组装而形成的。

Study on the Alternative Copolymerization of Styrene and CO Catalyzed by PdCl_2/ M ( CF_3SO_3) n/ bidentate N-N Ligand

氯化钯/三氟甲基磺酸盐/含N双齿配体催化苯乙烯与CO交替共聚的研究

When the complex of anhydrous zinc acetate with 1,5-naphthalene diamine was formed, the anhydrous zinc acetate changed from a bidentate ligand to a unidentate ligand.

在无水乙酸锌与1,5-萘二胺形成配位络合物的过程中，无水乙酸锌的结构从双齿型转变成单齿型。

Having screened ligands, we found that the P, 0 bidentate ligand could effectively catalyze the Suzuki cross-coupling reaction.

通过对配体的选择，发现P，O双齿配体可以高效地催化Suzuki交叉偶联反应。

Combined with the construction practice, the paper discussed the main contents and points of the evaluation for construction engineering bidding and contract.

结合工作实践，阐述建设工程投标评审、合同评审的主要内容及要点。

Bidding and Contract in Computer Applying Items

计算机应用项目的招标与合同