查询词典 base

For the circuit to work,of course,polarities of both the base and collector circuits have to be correctforward bias applied to the base circuit,and the collector supply connected so that the polarity of the common element(the emitter is the same from both voltage sources.

对于电路的工作来说，当然，基极和集电极电路是需要更正的（正向偏置电压加在基极电路和集电极电路以便于发射极的电压极性和电压源的电压极性是相同的。

Firstly, this thesis introduced the concept of embedded system 、 characteristics and develop foreground 、 analyzed the feasibility that implement high-speed connection with Community Antenna Television network 、 Discussed the function and theory of operation、 process of operation of Cable Modem that developed in this base, and union the case that developed of HFC network, put forward a application solution for develop Cable Modem product base on DOCSIS.

本文首先介绍了嵌入式系统的概念、特点及发展前景，分析了使用有线电视网络实现高速接入的可行性。论述了在此基础上发展起来的Cable Modem的功能及工作原理、工作过程等，并结合HFC网络发展的具体情况，提出了一种开发基于DOCSIS的Cable Modem产品的实现方案。

Dynamic response of sliding structure subjected to earthquake ground motion is calculated with a precise high order direct integration method, and the numerical results are presented in terms of maximum acceleration response spectra of supcrstructure and maximum sliding displacement response spectrum. By comparison with isolating effects of pure-friction base isolation system and resilient-friction base isolation system , it shows that the isolating characteristic of S-LF is superior to P-F and R-FBI. Through analyzing an engineering example, it is observed that the maximum inter-storey shear force and absolute acceleration of sliding structure to earthquake ground motion are very different from those of traditional structures.

提出了一种新型基础隔震模型，即带限位装置的摩擦隔震体系；基于此隔震模型，利用Floquet理论研究地面谐运动下S-LF结构的运动特性；并利用高精度的精细时程积分法，通过对地震作用下S-LF动力响应的计算，绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱，并研究了各种结构参数对隔震的影响；通过与恢复力摩擦隔震系统和纯摩擦力滑移隔震系统的比较表明，S-LF的隔震性能优于P-F和R-FBI；对计算实例的分析发现，地震作用下S-LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。

The base part is curved concavely so as to form a space between the base part and the bead core, and an anchor rubber having a complex elastic modulus of from 20 to 80 MPa is disposed in the space to tightly pinch the carcass cords between the anchor rubber and the bead seat of the wheel rim.

所述基部凹曲以形成一个介于所述基部和胎圈芯之间的空间；且一复合弹性模量为20到80MPa的锚固橡胶设置在所述空间中，从而箍紧锚固橡胶和轮辋的胎圈座之间的胎体帘线。

Branchlets of current year sturdy, lenticellate, glabrous. Petiole ca. 3 cm, base ca. 4 mm thick; leaf blade elliptic to ovate-elliptic, 25-30 × 8-10 cm, leathery, concolorous, abaxially covered with minute scalelike trichomes, base broadly cuneate and symmetric, margin entire, apex acute and oblique; secondary veins 12-16 on each side of midvein, adaxially slightly impressed, abruptly curving apically, obscure near margin; tertiary veins subparallel.

坚决，具皮孔的当年小枝，glabrcircaPetiole circcircam，繁茂的基础约4毫米；叶片椭圆形到卵状椭圆形，25-30 * 8-10厘米，两面同色，背面为小鳞片状毛覆盖，基部宽楔形，对称，全缘，先端锐尖、偏斜；次脉每边12-16，正面稍凹陷，顶部突弯，边缘不明显；支脉近平行。

This article is main to proceed the research to the consistency problem of knowledge base inside knowledge, and realizes a program which can examine the consistency of knowledge base with knowledge.

本文主要对知识库中知识的1致性问题进行研究，并实现1个能检测知识库中知识的1致性的程序。

The key components in laser gyro is He-Ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the Lamb half classical theory, and on the base of density matrix theory, the optical Brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter-propagating wave. On the basis of this equations, adopted the simulation software MATLAB and virtual instrument programming language LabWindows/CVI, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock-in of frequency and the characteristic of light intensity and phasic of the counter-propagating wave in laser gyro.

激光陀螺的核心部件为He-Ne环形激光器，而掌握光与介质的相互作用理论是研究激光器的关键，采用拉姆半经典理论为主，在密度矩阵理论的基础上，推导环形谐振腔中描述He-Ne气体增益介质原子运动的光学布洛赫方程，运用介质极化理论得出描述激光陀螺反向行波的光强、位相所满足的自洽场方程组，在此基础上，运用MATLAB仿真软件和虚拟仪器编程语言LabWindows/CVI，对激光陀螺中的介质增益色散特性、频率牵引效应、烧孔效应及模竞争、闭锁效应及环激光的光强和相位特性进行仿真试验研究，并且运用全量子理论，对激光工作原理进行分析，得出二能级系统单模辐射场的光子数密度分布，得出激光场的光子统计分布，仿真激光场的动态建立过程。

In order to deeply analyze the distribution of maximum tensile strain during asphalt surface for Semi-rigid base asphalt pavement and compound base asphalt pavement , two types of typical structure were chosen, taking the Shell designing software BISAR 3.0 as calculation tool, considering two kinds interface contact condition of complete continuousness and not incomplete continuousness, then a comprehensive analysis was made on the maximum tensile strain of every structure on the basis different interface contact condition.

摘 要：为深入分析半刚性基层沥青路面和复合式基层沥青路面面层内的最大拉应变的规律，选取两类沥青路面的典型结构，采用壳牌设计软件 BISAR 3.0为计算工具，考虑层间完全连续状态以及不完全连续两种状态，对各结构在不同的层间结合条件下沥青层最大拉应变进行了比较和分析。

A novel structure of Corrugated pipe diaphragm pump is proposed. A model of corrugate pipe is built base on the prototype used in ShenHua coal-to-oil conversion technology experimental base. The distribution of stress in the corrugated pipe diaphragm is analyised using COSMOS/Works finite element simulation.

提出了一种采用波纹管隔膜取代平板隔膜的新型隔膜泵；以某煤制油中试基地试验样机的波纹管隔膜为例，建立了波纹管隔膜计算模型，应用COSMOS/Works有限元软件计算了波纹管隔膜工作应力并分析了其应力分布规律。

The algorithm combines thermodynamic and covariation information to assign scores to all possible base pairings. Base pairings are then predicted with the help of the iterated RNA folding algorithm based on minimum of free energy.

该方法在给潜在碱基对打分时综合了热力学和协变信息，通过基于最小自由能RNA折叠算法的多次迭代选出所有的碱基对。

The X-ray diffract was used to analyze the crystal structure of the composite. Results show that after the talc was treated with blend coupling agent, the crystal structure of talc changed, and effect Intercalation phenomenon.

通过X射线衍射分析可知，用混合偶联剂对滑石粉进行预处理后，滑石粉晶体结构发生改变，产生了插层现象，使PP／滑石粉复合材料为纳米复合材料。

An authentic Maui wedding might require the services of a 'kahu', which is a Hawaiian minister.

毛伊可能需要一个真实婚礼服务'kahu'，这是夏威夷部长。