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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Experiments [1, 2] have revealed a transition accompanied by an appreciable enhancement of pulsations whose period is twice that of the driving vibrating tape.
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Results are given of experimental investigations of heat transfer under conditions of forced convection of highly subcooled water in a smooth pipe and with an internal twisted tape under asymmetric heating.
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The technique for measuring distortions is described, and the results of measurements are presented for several films cut from different sections of a standard piece of double-sided tape with a length of ~7 m and a useable width of ~20 cm.
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The standard plastic base of the tape under investigation is 190 μm thick; ~50-μm-thick layers of diluted PX3 emulsion-gel are applied to its opposite sides.
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The trigger system of the detector and the conditions for recording "charged" and "neutral" events on a magnetic tape are described.
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| | The purpose of designing and experimenting a MFT-PTtype composite multichannel telemetry system is to transmit and observe at the same time short period and long period seismic signals and other geophysical data for a comparatively large area (100-200kms radius).It is a combination of the pulse amplitude modulation and frequency modulation types. The design of the system consists of some special features, such as the "Waiting Type" multi-phase multivibrator, singletube monostable circuit. When this system i... | | MFT—PT型遥测仪的研制,是为了在较大范围内(100—200公里)同时传输观测短周期、长周期地震信号和其他地球物理量. 该仪器系统是由脉冲幅度调制和频率调制两种遥测系统复合组成的.其设计特点有如等待式多相多谐振荡器,单管单稳电路等.遥测仪与电子计算机,磁带机配用可以达到快速综合处理地震信号的目的. 该仪器如果采用话音频率,则可以利用电话线路把地震信号送到几千公里之外.遥测仪如果与射频收发讯机配合,则可以构成无线流动台网. | | 文摘来源 | | S " is the abbreviation for Slalom Line Data-Processing Programme which is worked out purposely for processing the data observed with slalom line. The programme as a whole consists of some blockettes as required in the processing of slalom line as well as in the conventional processing. The programme is available to computer-150 with the instructions of its own. Apart from the mainframe, the peripheral devices such as photoelectric tape reader (PTR), line printer and cross-section display unit etc. ar... | | 弯曲测线资料处理程序,简称“S”程序,是为处理弯曲测线观测的野外资料而编制的.整个程序包括弯线处理要求的一些子块以及常规处理要求的一些子块.程序适用于150机,用的是150机器指令,除主机外,还使用了光电、觉行、A/D输入机、剖面显示仪等外围设备.现有程序处理100张野外带的一条弯线剖面大约需要用2—3小时.这分报告主要说明程序结构的设计思想和方法实现的数学模型,而没有涉及具体的机器指令.另外,报告还从处理的两条冲面的实例出发,对观测系统、地层倾角、速度等参数对于弯曲测线地质效果的影响进行了一些初步探讨,计算了一些临界数据;企图能给野外施工设计和处理参数的选取提供一些依据. | | 文摘来源 | | From " Contact Mechanical Switch " to " Contactless Coverage Switch ", this is indeed a great advance in the vanquishment of the short-comings of bad contact and the inconvenience in operation. However, the "contactless coverage switch " needs a large number of "tied field-effect transistors" (for example, for the 24 channels analogy tape recorder,there is the requirement of 1200 transistors), hence, it takes a very high price of making such a switch. The main purpose of the design "is to save transis... | | 从“全触点覆盖开关”(以前称“排列转换面板”)至“无触点覆盖开关”(由蔡安民同志设计)确实是一大革新,可以克服“全触点覆盖开关”转换插头接触不良及操作不便之弊病。然而,“无触点覆盖开关。所需结型场效应晶体管数量太多(对24道模拟磁带、备用24道,需场效应晶体管1200只),造价高昂,因此,许多人怀疑其是否具有实用价值。本设计的主要目的在于节省管子,降低造价,使之付诸实用。因本设计系以“无触点覆盖开关”为基础,增加了一些“触点开关,”故暂称为“混合式覆盖开关。” | | 文摘来源 | |   | | << 更多相关文摘 |
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