Plasma sheath
[电] 等离子体被覆
🧩 词语组成解析
sheath
[ʃi:θ]
n. 护套;鞘;叶鞘;紧身装;
v. 包，盖;
🗣️ 情景例句
who have made my stay in the United States so wonderful.
是你们使得我在美国的生活如此多采多姿。
Do business,but be not a slave to it.
要做事，但不要做事务的奴隶。
Happy birthday! said Polly, and gave Ann her present---a red feather.
“生日快乐！”波利说，然后给安送礼物--一根红羽毛。