释义 |
United States standard dry seal thread United States standard dry seal thread[yə′nīd·əd ′stāts ′stan·dərd ′drī ¦sēl ‚thred] (design engineering) A modified pipe thread used for pressure-tight connections that are to be assembled without lubricant or sealer in refrigeration pipes, automotive and aircraft fuel-line fittings, and gas and chemical shells. |