electron diffraction是什么意思

用法例句

Application of grey cluster analysis in selective area and evaluation of coalbed methane;

灰色聚类分析在煤层气选区评价中的应用

Based on the evaluation of coal bed gas and prospecting practices during recent years, submited some problems to the current thinking of selective area and evaluated method, and probe into that how to decide the target of selective area and how review on it,and then submited viewpoints that thinking of selective area must realistic, and the method of evaluation ought to functional.

根据近几年从事煤层气评价和勘探工作的实践和思考，对比较流行的选区思路和评价方法作者提出了一些疑问，就如何确定选区的目标和从哪些方面进行评价进行了探讨。

Ore control condition and advance survey precinct of south Dongsuqi gold deposit, Inner Mongolia;

内蒙古东苏旗南部金矿控矿和预查选区分析

This theme makes the research for theapplication of task drive in Photoshop teaching,outlines and makes use of the different ways to create the concrete process of particularprecinct such as route passageway cover and diameter measuring tools.

对任务驱动在Photoshop教学中的应用进行了探讨,总结并归纳利用路径、通道、蒙板及矢量工具等不同的方法来创建特殊选区的具体过程。