acid-proof alkali-proof salt-proof

high grade moth-proof damp-proof sheep down quilt

water-proof and seepage-proof project

100 MW and below generating units

10kV and below transmitting lines

Above and Below the Dam

above-generation and below-storag

Acquired absence of leg at or below knee

allowance below nominal size

altitude below pole

and-below

Below

below 20 K

below bearing type generator

below bridge

below bridges

below clouds

below critical

below curb