Directiy heated cathode
[電] 直接加熱式陰極
?? 詞語組成解析
heated
['hi:tid]
adj. 熱的，加熱的;激昂的，興奮的;激動的;
v. （使）熱(heat的過去式和過去分詞);
cathode
[['k?θ?ud]]
n. 陰極\\n[化] 陰極
??? 情景例句
Well, it's a very easy operation, Carl.
這是個很簡單的手術 Carl。
We have new methods like compensation trade and joint ventrue.
我們有補償貿易和合資經營。
IN CLASS WITH MISS ZHAO
在趙小姐的課堂上