大家都搜:
洞穴
1、biconcave shape picture───双凹形图
2、excavator song blippi───挖掘机鸣笛
3、cavaliers rumors nba───骑士队传闻nba
4、cavort in a sentence───对一个句子的反驳
5、scavenger hunt template───拾荒者狩猎模板
6、concave-convex shape───凹凸形状
7、paleolithic cave painting───旧石器岩画
8、cavern definition───洞穴定义
9、caviar crossword───鱼子酱纵横填字游戏
10、excavator videos───挖掘机视频
1、The test divides into two groups:one is the direct back-extrusion and another is the pre-pressing caverna - back-extrusion.
2、The direct back-extrusion process has the defect that the end surface is unevenness, but the pre-pressing caverna - back-extrusion process solves the problem effectively.