查询词典 contract bridge

The theoretical study shows that the central frequency is linear with the square of the voltage applied on the Wheatstone bridge. The adjustable frequency range can be extended by decreasing the wide of the bridge and the resistance of the Wheatstone bridge.

理论研究表明：中心频率与电桥电压的平方成线性关系；中心频率的可调节范围可通过减小梁的宽度和压敏电桥的电阻来扩展。

The Dongping Bridge is a new arcuated built-up system bridges. Half through steel box tied arch and prestressed concrete continuous beam were connected directly, and then the bridge becomes the Cooperation System Bridge with vice-arch.

东平大桥是一种新型的拱梁组合桥，由中承式钢箱系杆拱与预应力混凝土连续梁直接连接形成协作体系，并保留施工过程中的拉杆形成副拱。

A conclusion is given that the cable-stayed arch bridge is novel and artistic. It is more important that the arch axile force of the cable-stayed arch bridge may adjust, thus, the bridge may develop to the great span direction.

由此得到结论：斜拉拱组合桥不仅桥型新颖美观，更重要的是拱肋轴力可调，该拱桥桥型可以向大跨度方向发展。

There are three different dismountable bridges: Arched Bridge, Bascule Bridge and Pillar-Support Bridge.

这是三组可拆装的桥梁：拱桥、吊桥和柱桥。

A Bascule Bridge can span the longest distance because of its light weight. Arched Bridge: A curved arch is fixed at both banks to support the bridge.

吊桥能跨越最长的距离，因为它们重量轻；拱桥：一道弯曲的桥拱牢固地固定在两岸，支撑起桥梁。

First across a wood bridge, being the middle span of it, hear the sound of "Caca", and the bridge is broken with our car down. We are shocked after the var passes over, the bridge reform to the original style!

先是经过一座木桥，到了桥中央，只听桥咯砟一声响，桥断了，我们的车也向下一沉，咯噔一声，吓人一跳，车过以后，桥又恢复原状！

A new organic compound, trans-2--5-dimesitylborylthiophene (abbreviated as DMASBT, 5) with dimesitylboryl, dimethylamino and styryl-thiophene as electron acceptor, electron donor and conjugate bridge respectively, was synthesized. Its crystal structure determined by X-ray diffraction method indicates that the B-C bond between B atom and it bridge is obviously shorter than those of between B atom and mesityl groups. This remarkably strengthened B-C bonding can be regarded as an evidence of additional p-7t conjugation between the B atom and n bridge.

合成了以含硼基团为电子受体，以二甲胺基为电子给体，以苯乙烯基噻吩为共轭桥的新化合物2-[（4'-N，N-二甲胺基）苯乙烯基]-5-二米基硼-噻吩 trans-2-[(4'-N， N-dimethylamino) styryl]-5-dimesitylboryl-thiophene（简写为DMASBT，5）。X射线衍射方法测定其单晶结构表明，硼原子与π共轭桥之间的硼碳键相对于其它的硼碳键明显缩短，硼与π共轭桥之间存在除了σ键之外的p-π共轭作用。

In order to understand the dynamic property of extradosed cable-stayed, built up its plane continous rigid-frame model and compared with each other, concluded that the former is more complex due to the remarkable coupling effect of cable, pylons and box-girder. The dynamic property of box-girder decide the dynamic property of the bridge, whose whole structure is comparative rigid. This paper indicated that the bridge is not attribute to flexible structure, because its basic free vibration cycle is more shorter than the cable-stayed bridge.

为了更好的理解矮塔斜拉桥的动力特性，还建立了平面梁单元的连续刚构模型，并与平面梁单元的矮塔斜拉模型进行了对比分析，结果表明，矮塔斜拉模型由于索、塔、梁的高阶振型耦合显著，其振型较连续刚构复杂，灵江大桥的动力特性主要由主梁的动力特性决定，其结构整体刚度较大，基本自振周期较斜拉桥短，不属于柔性结构。

The engine main circuit have to be gurranteed drawing the torque of electric motor and rotation speed wholly to do regulateing of independence ,But also possess extensive setting range SS7's mould electric locomotive adopts Quan Kongqiao and semi bridge accuseeing series connection to make up the monophase bridge style commutation electric circuit ,The coil power supply is encouraged against the stringtrain by the electric motor the drawing armature to 3 parallels operation ,Still there is an excitation commutation bridge ,He encourages the coil power supply with 3 electric motors drawing together to the series connection ,Moreover has one another accuses the regulating action .

机车主电路必须保证牵引电动机的转矩和转速都可作独立的调节，而且要有宽广的调节范围。SS7型电力机车采用一个全控桥和一个半控桥串联组成单相桥式整流电路，向3台并联工作的牵引电动机电枢与串励绕组供电，还有一个励磁整流桥，向串联在一起的3台牵引电动机他励绕组供电，并具有相控调节作用。可以实现机车无级调速和无级削磁。SS7型电力机车采用再生制动方式，再生制动时，牵引电动机作直流发电机工作，并且将电能馈送回接触网，此时电力机车相当于一个移动的发电站。

Combining the general situation of Jintang bridge engineering,it is used the pier body to preconceal bere and bracket for bridge s construction,and according to bridge s character with a high beam and large area of concretes.

结合金塘大桥工程概况，采用墩身预埋贝雷托架施工，并针对本身梁高混凝土方量大的特点，合理地采取分层二次浇筑，对人洞可能产生的裂纹采取有效的预防措施，并在施工过程中进行了严密的观测和监控，确保支架的安全和箱梁成品质量。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。