point source

ریشه

Derived from the combination of 'point' (from Old French 'point') and 'source' (from Old French 'sorse').

مثال

• The factory is a point source of pollution.
• The speaker is a point source of sound.
• The light bulb is a point source of light.

ترکیب‌های رایج

point source pollution point source emission point source light