With international economic situation becomes well gradually, inbound tourism resumes quickly and outbound tourism increases notably; domestic tourism also increase but bipolar distribution situation aggravate.

Place of origin for these genera which belong to bipolar distribution may be the mixed livingarea ( or zone) between two realms.

认为古生物地理大区的混生区是这些两极分布的凉水型分子的起源地，即混生区起源。

The bipolar distribution and biogeography of the Ordovician faunas

奥陶纪生物的两极分布及其与生物地理的关系

By repairing the winding connection for the bipolar asynchronous motor, the connection of stator and rotor is analyzed in the paper, the correct winding connection method is chosen, the repairing quality is improved.

论述了对绕线型变极异步电动机的修理，分析定子、转子绕组的接法，选择正确的绕组并联支路数和极相组联接方式，提高检修质量。

Analysis on the Winding Connection for Winding Bipolar Motor

绕线型变极电动机绕组接法分析

The developing history of bipolar lead acid battery was introduced briefly and the structure of bipolar lead acid battery was illustracted by comparing with that of common lead acid battery.

简要地介绍了双极性铅酸蓄电池的发展历史，并采用与普通电池结构对比的方法介绍了双极性铅酸蓄电池在结构方面的特点。

Bipolar lead acid batteries have many advantages compared with conventional monopolar ones, but the research will also require substantial effort and investment.

双极性铅酸蓄电池与传统的单极性铅酸蓄电池相比具有许多优点，但其研究尚需相当大的努力和投资。

The substrate materials used in bipolar lead acid batteries currently were recommended because it was the key factor for bipolar technology.

基底材料是双极性铅酸蓄电池技术的关键所在，介绍了目前双极性铅酸蓄电池所采用的基底材料。

Progress on bipolar lead acid battery research

双极性铅酸蓄电池的研究及其进展

Study of light substrates for bipolar lead acid battery

双极性铅酸蓄电池轻型导电基底的研究

The lesion area of tip electrode of bipolar lead was the same as that of unipolar ( P> 0.05).

双极导线的顶端电极消融损伤范围与单极导线相比无统计学差异（P>0.05）。

Bipolar ventricular inhibited pacemaker

双极心室抑制起搏器

Ion implantation technique for the fabrication of very high-speed bipolar circuits is discussed in the paper, with emphasis on the ion implantation doping and shallow junction formation and the annealing of the implanted layer in bipolar device process.

本文讨论了高速双极器件制造中的离子注入技术。重点讨论在双极器件制造工艺中的离子注入掺杂技术，离子注入形成浅结技术，以及离子注入层的退火技术。

Firstly, by following 40V bipolar process the device can be inexpensive in cost and small in size.

首先采用40V双极型工艺可降低芯片的成本和面积；

A bipolar device may be used in nice analog integrated circuits for stable process, high speed and power drive, so a bipolar LDO is used widely.

由于双极器件开发早、工艺相对成熟、稳定，而且用双极工艺可以制造出速度高、驱动能力强、模拟精度高的器件，适用于高精度的模拟集成电路。

Though a bipolar device has high analog precision and great drive power, it has the problem of thermal swing.

先介绍了一种双极型过温保护电路，虽然这种电路模拟精度高，驱动能力强，但电路本身存在热振荡问题。

This paper introduces the successful application of the program to IC bipolar device.

文中介绍了用该法编制的程序及其成功的应用。

It has characteristics of bipolar device and junction field-effect device. It has two kinds of carriers participating in electric conduction and the conduction ability is controled by voltage. It has larger current density and larger input resistance.

这种器件兼有双极型器件和结型场效应器件的特点，即有两种载流子参与导电，导电能力受电压控制，具有较大的电流容量和输入电阻。

5-HT-immunoreactive cells appeared bipolar neuron in vitro after cultured for 12 days.

在培养第12天的细胞爬片上，可见5-HT免疫反应阳性细胞，外观似双极神经元。

Optical Implementation of WTA Neural Network with Bipolar Neuron States

全双极WTA神经网络模型的光学实现

Optical implementation of the bipolar bidirectional associative memory

双极双向联想存储器的单通道光学实现