directly heated cathode是什么意思？

• prompt
• polite
• vehicle
• BARRIE
• ultra
• fake
• text
• 实施英文
• lesson
• giraffe
• firmness
• 参与者英文
• giraffe
• volume
• 导师英文
• droplets
• committing
• 抛弃英文
• 方案英语
• reveal
• 流浪者英文
• passage
• panicked
• cheese
• 呼吁英语
• bothering
• candy
• 领域英语
• cloud
• organizations

• scared
• 局外人英文
• amazing
• disappointed
• searches
• monitor
• general
• failure
• front
• banger
• 缺陷英文
• modernize
• searches
• permitted
• 参数英文
• predict
• bombarded
• peeping
• intermission
• client
• conflict
• lycopene
• ticket
• brat
• tourist
• default
• autumn
• 长颈鹿英语怎么说
• 旋律的英文
• crayon

• circuits
• circuity
• circular
• circularity
• circularization
• circularize
• circularly
• circulars
• circulate
• circulated
• circulating
• circulation
• circulative
• circulator
• circulatory
• circum
• circumambience
• circumambient
• circumambulate
• circumbendibus
• circumcallosal
• circumcentre
• circumcircle
• circumcise
• circumcision
• circumclusion
• circumduction
• circumerosion
• circumference
• circumferentia