FILTERS
a porous device for removing impurities or solid particles from a liquid or gas passed through it
an arrangement whereby vehicles may turn left (or right) while other traffic waiting to go straight ahead or turn right (or left) is stopped by a red light
pass (a liquid, gas, light, or sound) through a device to remove unwanted material
move slowly in a specified direction
an arrangement whereby vehicles may turn left (or right) while other traffic waiting to go straight ahead or turn right (or left) is stopped by a red light
pass (a liquid, gas, light, or sound) through a device to remove unwanted material
move slowly in a specified direction