摘要
首先把矩阵的初等变换p(i,j),p(i(c)),p(i+j(k))推广到分块矩阵中去,然后在pn×n中讨论了用广义初等变换求可逆分块矩阵,最后将初等变换求逆矩阵的方法推广到分块矩阵中.
This artecle mainly espounds how the materistls,techniques and equipment are required when we use the instant tea to produce tea drink. By means of analysis it also puts forward the requirements, concrete parameters so that it can provide aids for the production of tea drink in the mini-enterprises.
出处
《河西学院学报》
2004年第2期4-7,共4页
Journal of Hexi University