The word 'airlock' often appears in sci-fi or space-related discussions and literature. The crew assembled in the airlock before the extra-vehicular activity began.
Pro Tip 2/3
Safety Precaution
An airlock is crucial for safety in space travel to avoid sudden decompression. The astronaut checked the airlock thoroughly to ensure everyone's safety.
Pro Tip 3/3
Pressure Difference
Understand airlock as a transition area between high and low pressure environments. Before opening the outer door, the airlock must equalize pressure with the outside.