directly heated cathode是什么意思？

• 来源英语
• general
• emergency
• organizations
• toxicity
• 抛弃英文
• approaches
• begins
• cloud
• theatre
• tomato
• text
• sweater
• 参与者英文
• lesson
• 造型的英文
• ultra
• monitor
• 缺陷英文
• dragon
• passage
• ticket
• 领域英语
• bothering
• erased
• permitted
• saturday
• pear
• crayon
• supper

• conflict
• volume
• profile
• failure
• 参数英文
• chess翻译
• narrow
• 方案英语
• fiercely
• default
• bombarded
• 确认英文
• committing
• giraffe
• amazing
• peeping
• firmness
• scared
• 纪念品英语
• juice
• general
• 局外人英文
• droplets
• satisfaction
• intermission
• polite
• explore
• silver
• PEGGING
• prompt

• impressionistic
• impressions
• impressive
• impressively
• impressiveness
• impressment
• imprest
• imprimatur
• imprimis
• imprint
• imprinter
• imprinting
• imprison
• imprisonment
• improbability
• improbable
• improbably
• improbity
• impromptu
• improper
• improperly
• impropriate
• impropriation
• impropriator
• impropriety
• improvability
• improvable
• improvably
• improve
• improved