题目内容
密排六方晶胞有6个原子，配位数位为12，致密度约为84%。
查看答案
搜索结果不匹配？点我反馈
更多问题
下贝氏体形态与高碳马氏体形态很相似，都呈片状或针状，但是由于下贝氏体中有碳化物的存在，较中浸蚀，在光镜下颜色较深色。
检验钢材脱碳层试样的取样方向是纵向。
下贝氏体转变通常伴随着大量的残余奥氏体。
Put the following sentences in the right order.1）We approachyou today in the hope of establishing business relations with you and expect to enlarge our business scope.2) If you are interested in any of the items, please tell us by fax.3) We are one of the leading computer manufacturers in our country and have handled in the products for about 10 years.4) In order to acquaint you with our business lines, we enclose acopy of our illustrated catalogue covering the main items available at present.5) We will give you lowest quotations and try our best to complywith your requirement.
微信支付 
支付宝支付