技术

核辐射与物质的相互作用

In the previous chapter we have discussed natural radioactivity in which a and B particles and y-rays are emitted from the disintegrating nucleus of an atom. In nuclear fission and fusion reactions neutrons and other particles together with certain radiations are emitted from the nucleus. Moreover interaction of high energy particles *natural or artificial* with... Read More »

电子测量仪器及机电类

INTRODUCTION :- for the detection or measurement of electric current potential difference, and resistance certain instruments have been devised viz the galvanometer for the detection of small currents or measurements of small currents of the order of micro amperes or millionaires the voltmeter of potentiate for the measurements of potential difference (or voltage) between two... Read More »

石油工程和IT,的定义和介绍

Petroleum and it,的定义和介绍… Latin petra =rock,oleum=oil means sock oil. It is usually found below the surface of earth.it is viscous liquid and mixture of alkane,alkene,cycloalkane,aromatic hydrocarbons and some inorganic compounds therefore it is called crude oil. Crude oil is drilled out from the soil and carried to oil refineries by means of... Read More »

Homologous series and characteristics of homologous series

Homologous series and characteristics of homologous series Definition; Series of organic compounds which have same functional group, similar structural feature but differ from each other by integer number of CH2(methylene group) is calledHomologous series”. The number of homologous series differs by molecular mass 14. Characteristics of Homologous series: 1. All numbers of homologous series... Read More »

保利马努 | Merious部分 | 单位分子 |聚合

保利马努,merious部件或单元或分子,许多分子聚合链接. The process in which organic compounds containing double bonds or triple bonds undergo chemical reaction in such a way that large number of smaller molecules join together to form very large molecules smaller molecules add together are called monomers and they produce big molecules... Read More »

如何配对笔记本电脑到蓝牙移动连接

How to Pair Your Laptop to a Bluetooth Mobile Connect你想笔记本电脑设备共享你蓝牙手机连接. 如蓝牙就像是无线位在允许您连接设备等没有得到重视自然也是他们的电缆. 首先,你必须笔记本电脑和手机也. 看到这个图片. To connect a Bluetooth device to your PC you need to... Read More »

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