extensive cultivation; wide sowing but meager harvest-a method of cultivation: the cultivated area is large but the per area yield is relatively low

Forcing-cultivation and Rain-shelter-cultivation

additional softening

Aesthetic softening

Age Softening

Air Flow Softening

Annealing Softening

antibacterial and softening agent

antistatic softening agent

ash softening point

asphalt softening point

asphalt softening point tester

base exchange softening

bath softening agent

behavior softening

bilinear softening traction-separation law

biological softening

bitumen softening point gauge

bone softening