·2,447,543篇论文数据，部分数据来源于NoteExpress
It has been shown that the velocity of sand flow and airflow at the entry of core-box was quite different.
结果表明，射砂孔位置的气流和砂流速度有显著差别。
youdao
应用推荐
模块上移
模块下移
不移动