Heptode

n. 七極真空管\\n[電] 七極管

??? 情景例句

That's it. That's it.
對了, 就這樣。
Deliberate slowly,execute promptly.
慢慢酌量,快快行動。
employing full-time technicians and run on specially-written software.
雇用專職的技師,而且得用專門編寫的軟件才能運行。
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?? 更多 H 開頭的單詞

halfback ['hɑ:fb?k]
heck hek
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