查询词典 transistor radio

Change in oscillation of the transistor circuit to gain, or transfer large transistor operating point.

调换振荡回路中各晶体管，使其增益提高，或调大晶体管的工作点。

Radio telescopes are relatively inexpensive; radio signals travel at the speed of light, faster than which nothing can go; and the use of radio for communication is not a short-sighted or anthropocentric activity.

射电望远镜相对来说是昂贵的，无线电信号以光速行驶，没有什么比起它能走的更快了；而且无线电对于传播的使用不是一种短视或者以人类为宇宙中心的行为。

You may have access to a radio or radio/cassette, or radio cassette/cd player.

您可以使用收音机或收/录音机，或收录机/CD播放器。

All provide a mixture of local news and comment, with some entertainment matter, mainly pop music, in between. In 1991 the Home Secretary appointed a new Radio Authority to take over the functions related to radio of the old IBA, and in particular to grant new licences to broadcast. In the 1990s there should be one or more new commercial radio stations broadcasting nationwide, including one 'non-pop' station, possibly for continuous broadcasts of classical music.

他们既提供地方新闻和评论，还插入一些娱乐节目，其中主要是流行音乐。1991年，内政大臣任命了一个新的广播公司，取代旧英国独立广播管理局的相关功能，尤其是为广播电台颁发新的许可证。20世纪90年代，一个或多个新的商业广播电台在全国范围内应运而生，包括一个"非流行音乐"台，用于长期播放古典音乐。

The theme of this thesis is to study applications of radio communication technologies to direct control of air conditioning load. Other than of Taiwan Power Company self constructed radio load management system, technical feasibility of controlling air conditioners by FM subcarriers of commercial broadcasting stations as well as radio paging system of telecommunication companies are to be studied.

摘要本研究探讨无线电通讯技术於空调负载直接控制之应用，除台电目前既有之无线电负载管理系统，本研究针对租用电信公司无线电传呼系统之无线电传呼式负载管理系统及租用广播公司副载波系统之副载波负载管理系统进行分析与可行性之探讨。

Adopt the generalized maximum likelihood radio test based on the Neyman-Pearson algorithm, to study two unresolved Rayleigh targets. And deduced the detection statistic which is chi-square random variable, which only need to know the conditional probability density functions of echo's measured amplitude, in-phase and quadrature of monopulse radio, but the signal-to-noise radio and the direction-off-arrival of any signal are unnecessary.

采用基于涅曼-皮尔逊准则的广义似然比检测，对不可分辨的两个瑞利目标进行了研究，推出了服从χ2分布的检验统计量，此方法只需要知道目标回波信号测量幅值的条件概率密度函数、单脉冲和差比值的同相和正交部分，而不需要任一目标信号的信噪比和DOA的先验知识。

Solar radio bursts are usually accompanying with solar flares. The complicated radio spectrum detected in solar radio bursts contained a lot of important information on their source region including physical environment and emission mechanism. Especially, because of their morphologic features of short duration, rapid frequency drift, complicated types and so on, the microwave fine structures could bring out rich important information on the source region such as the complicated configuration of magnetic reconnection, the movement of energetic particle, etc.

太阳射电爆发通常发生在太阳耀斑期间，它携带着爆发源区的物理环境以及辐射机制等诸多重要信息，尤其是微波爆发的精细结构，持续时间短、变化快、结构复杂，可以反映重联过程复杂的磁场结构、高能粒子运动等许多特征。

In the traditional GSM network planning, the revised Hata model serves as the prototype, and the coefficient in the model formula is tuned according to the data obtained in the radio propagation feature test specific to local actual radio environment, so as to obtain the propagation model for practical prediction. A common digital map only contains the clutter information and the digital terrain model information. So the building designers cannot fully allow for the influence of radio propagation, and can only estimate the influence on the building roughly from a traditional perspective, e.g., consider the influence of different clutters through certain clutter offset.

在传统的GSM网络规划中，一般都以修正的Hata模型为原型，再利用规划软件通过导入针对当地的实际无线环境做无线传播特性测试所得的数据对模型公式中的系数进行修正而得到实际预测用的传播模型，一般使用的数字地图仅包括地物信息和高程信息，因此建筑物对无线传播的影响无法充分考虑，只能从统计意义上对建筑物的影响进行粗略的估计，如通过一定的地物偏移来考虑不同地物的影响。

The first successful radio range-finding experiment occurred in 1924, when the British physicist Sir Edward Victor Appleton used radio echoes to determine the height of the ionosphere, an ionized layer of the upper atmosphere that reflects longer radio waves.

首次成功的无线电范围内调查试验发生在1924年，当英国物理学家尤德爵士维克多阿普尔顿使用的无线电回波，以确定高度，电离层，电离层的上层大气，反映了较长的无线电波。

The key problems of software radio and direct sequence spread spectrum range used in high range radio fuze are discussed. The effects of doppler frequency and carrier's initial random phase are analyzed. A new direct sequence spread spectrum algorithm based on software radio is proposed, by using differential encoding and quadrature demodulating, the effects of doppler frequency and carrier's initial phase on the output of inference filter are eliminated successfully.

研究了软件无线电和直接扩频测距技术在大炸高无线电引信应用中的关键技术问题，分析了由于多普勒效应引起的载波频偏以及载波随机相位对测距的影响，提出了一种基于软件无线电的直接序列扩频解调算法，通过采用差分编码和正交解调的方法，消除了多普勒频偏和载波随机相位对测距的影响。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。