sprays

During working, when the piston is near the _____, the air ignites the fine spray of fuel.

In a diesel engine, fuel must be broken up into a spray of fine droplets to _____.A.increa

Why is the case of the pollen－sprayed milkweed cited in Paragraph 6？

What happens to those insects when not killed by the spray of insecticide？

Some people______garden insects by spraying poison on the plants.A．eraseB．exterminateC．exc

spray granulation