基极总是比发射极和集电极薄得多。
The base region is always very much narrower than the emitter or collector regions .
特点：共基极输出电容小，低噪声系数。
特点：基极-发射极间内置电阻，高电压。
模拟了基极偏置电阻对功率放大器参数的影响。
The effect of base bias resistors on the parameters of pa (power amplifier) was simulated.
我们取发射极基极电阻的典型值为250欧姆左右。
We shall take the typical emitter-to-base resistance as about 250 ohms.
当基极接地时，晶体管Q4便成为一个非常高的阻抗。
With the base grounded, transistor Q4 is a very high impedance.
基极中空穴的密度小于发射极和集电极中自由电子的密度。
The density of holes in the base is less than the density of free electrons in the emitter and collector .
培养基极端的水分环境可能是导致玻璃苗形成的外在原因。
The extreme water condition of media is probably the external cause inducing vitreous shoot formation.
辐照后基极电流、结漏电流增大，集电极电流、击穿电压减小。
The base current and the junction leakage current increase, while the collector current and the breakdown voltage decrease for SiGe HBTs after radiation.
这个弯曲在反应标记上产生负电压，其反过来为晶体管的基极供电。
This flexing generates a negative potential at the feedback tab, which feeds back to the base of the transistor.
在地基极限承载力计算中，基底宽度对极限承载力产生重要影响。
In the analysis of the ultimate bearing capacity of foundation, the base width plays a very important role.
基极电极(3)是沉积在形成第一电极的半导体材料上面的金属层。
The base electrode (3) is a metal layer deposited on top of the semiconducting material forming the first electrode.
我们可以注意到，图中三极管的基极空接，被当做一个二极管使用。
Note that the base of the transistor is not used; the transistor functions as a diode.
截止频率是影响共发射极、共基极和共集电极电路频率特性的重要因素。
Cut off frequency is the main factor influencing frequency properties of electrode circuits of common emitter, common base and common collector.
根据极限平衡条件，推求了地基整体剪切破坏模式的岩石地基极限承载力。
With the limit equilibrium condition, the ultimate bearing capacity of rock foundation was deduced under general shear failure.
研究三向应力状态下条形地基极限承载力问题具有重要的理论和实际意义。
It is of important significance to study the ultimate bearing capacity of foundation in three-dimensional stress.
贝基极度痛苦地紧跟在汤姆身旁，竭力想止住眼泪，可是眼泪还是流出来。
Becky clung to his side in an anguish of fear, and tried hard to keep back the tears, but they would come.
本文论述并举例说明了灰色系统理论预测软土地基极限承载力的方法与步骤。
In this paper, the authors have presented the grey theory prediction methods and main stages of ultimate bearing capacity of soft soil foundation, and taken an example for it.
由于Q2的基极-发射极的电压为0V而截止，因此没有负载电流流过r6。
Consequently, no load current flows through R6 because Q2, whose base-emitter voltage is now 0v, has turned off.
新定义的倾覆稳定系数不仅与荷载有关，而且与地基极限承载力有确定的关系。
This new safety factor not only has a certain relation to the load, but also has a certain relation to the ultimate bearing capacity of foundation.
本文介绍了为异步电动机PW M变频调速系统而研制的GTR基极驱动电路。
In this paper GTR Base-drive circuits on PWM variable frequency and variable speed systems for induction motor drive are studied.
在基极-发射极反向偏置的条件下，研究了应力作用时间与器件参数的退化关系。
The relation of stress time to parameter degradation is investigated under the condition of reverse bias of base-emitter junction.
文章根据最小曲率半径定义和中值定理，通过极值分析方法来确定桩基极限荷载。
Based on the minimum curvature radius definition and mid value theorem, the pape gives the method of determining the limit load of pile foundation through extreme value analysis.
该法从地基极限承载力的普朗德尔·瑞斯纳解答的滑裂面出发，建立基本破坏模式。
The basic wreck model is founded according to Prandtl-Reissner solution of ultimate bearing capacity of foundation.
利用双剪强度理论，考虑中间主应力影响的特点，导出太沙基地基极限承载力公式。
The formula of Terzaghi ultimate bearing capacity of foundation based on Mohr-Coulomb strength theory does not take the influence of intermediate principal stress into account.
本文从包括埋层影响的集区杂质分布出发，求出了寄生PNP晶体管的共基极电流放大系数。
We try to obtain the common-base current gain a of the parasitic PNP transistor from the eloping profile of the collector region including the effect of buried-layer.
通过算例讨论了桩型及桩土接触面上的摩擦角对散体材料桩及其复合地基极限承载力的影响。
The influence of the pile shape and the friction angle of the interface on the limit bearing capacity is discussed by an example. It indicates that…
给出了非合金接触情况下，PNP型HBT基极比接触电阻和接触阻抗的解析计算方法和结果。
In this paper, we proposed a theoretical method and results for calculating special contact resistance and contact impedance of base contact of a PNP type HBT.
通过算例，讨论了桩型及桩土接触面上的摩擦角对散体材料桩及其复合地基极限承载力的影响。
The influence of the pile type and the friction angle of the contact surface on the limit bearing capacity of the piles and the composite foundation is discussed with an example.
通过算例，讨论了桩型及桩土接触面上的摩擦角对散体材料桩及其复合地基极限承载力的影响。
The influence of the pile type and the friction angle of the contact surface on the limit bearing capacity of the piles and the composite foundation is discussed with an example.
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