back-spotface

短语

词形变化

back-spotfaces 复数 back-spotfaces 三单 back-spotfacing 现在分词 back-spotfaced 过去式 back-spotfaced 过去分词

释义与例句

n.
  1. 1.

    A spotface that is so made.

    There's no second operation on these parts. The backside features are all back-counterbores and back-spotfaces.

v.
  1. 1.

    To spotface from the backside of a workpiece by using a tool that passes through a through hole, deploys a cutting edge (or receives it by manual insertion from an operator), spotfaces the far side, retracts the cutting edge (or has it removed), and then retreats back through the hole (toward the tool's origin).

    工程

    We won't need any second operation on these parts. We're going to back-counterbore and back-spotface all of these features on the backside.

词源

From back- + spotface.

来源：wiktionary