Also positioned(放置) in the neck of the envelope(管泡) are deflecting devices(偏转设备) that serve to bend the beam in horizontal and vertical directions.
举一反三
- Lesson Two Text A True of False7.Empennage, also known as the tail of an airplane, consists of vertical stabilizer or fin and horizontal stabilizer.
- vertical(horizontal) boile
- The syntagmatic relation is nowadays also referred to as the<br/>____ relation. A: vertical<br/>or choice B: horizontal orchain C: structure D: associative
- The crankshaft is used to change the ____________ motion of the piston into __________ motion. A: reciprocating, rotary B: rotary, reciprocating C: vertical, horizontal D: horizontal, vertical
- 折,in English, is horizontal stroke with a vertical turn.