X Factor
freq. 16
dict. 5
cmpt. 1
spoken 4
n.X 因素（尤指获得成功所必需又难以描述的素质）
[网络]英国偶像；未知因素；未知元素
- double seal technique
- double seal valve
- double-seal valve
- double -seal valve
- doubleseal valve
- double seam
- double-seamed can
- double seam end
- double seamer
- double seam(ing)
- double seaming
- double seaming closing machine
- double seam welder
- double seat
- double seat balanced valve
- double seated
- double-seated ball valve
- double seated main stop valve
- double seated valve
- double seater
- doubleseater
- double seater airplane
- double-seat stop valve
- double seat stop valve
- double seat valve