touchmark

名词 n.
中文释义

英文释义

名词 n.
  1. The manufacturer's official identifying sign, impressed into a pewter object. archaic
    — For quality control, Parliament in 1503 required all London-made pewter to be stamped with the maker's symbol or touchmark.
  2. A symbol, sign, or other inscribed indication used to aid the alignment, calibration, or other adjustment of a measuring device or scientific instrument. archaic,rare
    — The instrument used was a refracting telescope by Dollond. . . . The cap containing the diaphragm was furnished with a touch-mark consisting of a projecting spoke. When in adjustment as described above this mark was parallel to the short side of the parallelogram.

词形变化

touchmarks plural touch-mark alternative

词源

From touch + mark.
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