helical lamp
英
美
- 螺旋形灯
helical lamp的相关资料：
临近单词
helical lug
helical
helical blade drawing machine
helical plating stress tester
helical multishell structures
helical and twisted materials
helical antigenic determinant
helical pinion helical pinion
Helical slow-wave structure
helical baffle heat exchanger
helical gear with helix angle
helical traveling-wave tube
