“powderless”的英文意思_释义_用法

单词

powderless

释义

ˈpowderless, a.
[f. powder n.¹ + -less.]
a. Destitute of powder; not powdered.
1887Atlantic Monthly Sept. 323 His brown suit, his fur cap, his powderless hair..betrayed him [Franklin in Paris] at once.
b. Not employing powder.
1953Photoengravers Bull. XLIII. 171 The key to powderless etching in the Dow etching development lies in the chemical composition of the bath.1959Times 14 Jan. 12/4 Another precision etching system, the Lithotex powderless etcher, is being manufactured in Britain.1967V. Strauss Printing Industry v. 217/1 Though conventional etching methods are still used.., they are progressively replaced throughout the industry by powderless etching.1978Penrose Ann. LXXI. 162 Powderless etching is still rare [in India] and electronic engraving extremely so.

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