Packing void fraction
[化] 填料空隙度; 填料层空隙度
🧩 词语组成解析
packing
['pækiŋ]
n. 包装，打包;包装材料;（缝隙）填料;
v. 压紧(pack的ing形式);装满;
void
[vɔid]
adj. 空的，空虚的，没人住的;（职位）空缺着的;无效的;
n. 太空，宇宙空间;空位，空隙;空虚感，寂寞的心情;
vt. 使无效;宣布…作废;取消;排泄;
🗣️ 情景例句
You've really been keeping an eye on quality.
你们的确在质量上下了功夫!
What is on the schedule this morning?
今天上午有什么安排？
I'm not sure. It was difficult to see. Wei Hua and Sun Meiying were both neck and neck.
我不敢肯定。很难说。魏华和孙美英不分上下。