variable ceiling的相關資料：
臨近單詞
variable lift
variable
Variable Annuity Corporative of America
variable-rate certificate of deposits
variable frequency and speed conversion
variable zone of subsurface temperature
Variable-frequency adjustable-speed
variable coefficient diffusion equation
Variable-Stability Simulator Aircraft
variable elements of semivariable costs
variable wave-length phase microscope
Variable frequency hadraulic technology
