问题
填空题
滴注式气体渗碳工艺的过程是由排气、（）扩散和降温四个阶段组成的。
答案
参考答案：渗碳
搜题请搜索小程序“爱下问搜题”
滴注式气体渗碳工艺的过程是由排气、（）扩散和降温四个阶段组成的。
参考答案：渗碳
 Panda Express is a fast food restaurant chain(连锁店)in the United States. It sells Chinese food. When you go to 31 malls, supermarkets, airports, train stations, parks, stadiums, college campuses and 32 other places, you can see Panda Express. It is 33 chain of Chinese fast food restaurants in the United States. Panda Express 34 in 1983 by Andrew Cherng, Peggy Cherng and Ming Tsai Cherng. They were from Yangzhou, Jiangsu, China. Now Panda Express has 1,321 restaurants in 38 states and Puerto Rico，and the top-selling food of Panda Express 35 Orange Chicken and Beijing Beef.
|