bubbles

n.

a hollow globule of gas (e.g., air or carbon dioxide)

a speculative scheme that depends on unstable factors that the planner cannot control

"a real estate bubble"

同义词：house of cards

an impracticable and illusory idea

"he didn't want to burst the newcomer's bubble"

a dome-shaped covering made of transparent glass or plastic

Bubble jet recording method and apparatus in which a heating element generates bubbles in a liquid flow path to project droplets
Interstellar bubbles. II - Structure and evolution
Overconfidence and Speculative Bubbles
Formation of droplets and bubbles in a microfluidic T-junction-scaling and mechanism of break-up
Capillarity and Wetting Phenomena: Drops, Bubbles, Pearls, Waves
Trapping bubbles of conducting matter in magnetic fields
Assessing High House Prices: Bubbles, Fundamentals...
Erratum: Formation of droplets and bubbles in a microfluidic T-junction - Scaling and mechanism of break-up (Lab on a Chip-Miniaturi...
Direct in vivo visualization of intravascular destruction of microbubbles by ultrasound and its local effects on tissue
Interstellar bubbles