【经】 直接材料用量差异

direct labor rate variance

self-bonding and direct solderable enamelled wire

normal direct solar irradiance【能源】

direct【科技】;immediate【科技】;straightforward【科技】

direct-current telegraphy, compensating variations

high speed direct readout latexometer

Excision and graft bypass or direct repair A-V fistula of chest or abdomen

direct confession