Infrasizing
(粉末)粒度分析
🗣️ 情景例句
Would you like to give her a little farewell party?
你要不要为她举行一个小型欢送派对？
I feel terrible about it.
太对不起了。
This makes copies, using a mirror, a roller and special black powder.
传真机使用一面镜子，一个滚筒和持制的黑色粉未制作复制品。