【经】 购买材料定单

obtain materials from local sources; draw on local resources

reclaimed materials

semiconductor materials except AIV-elements,

obtaining SYNTHESIS gas from solid carbonaceous materials

estimated cost of machineries and materials payable

stray field testing of materials, nondestructive

discharge tube, gas-filled for cleaning surfaces while plating with materials

delivery of goods and materials【经管】;material appropriation【经管】