etch

• エッチングする；はっきりと描写する；記憶する
• vi. エッチング
• n. エッチング；腐食性

ed（食べる）の語源で、語源的にはeat（食べる）と同じ。

etch

etch: [17] A line that has been etched has been literally ‘eaten’ away by acid or other corrosives. The word was borrowed from Dutch etsen, which in turn came from German ?tzen ‘corrode, etch’. This can be traced back to a prehistoric Germanic *atjan ‘cause to eat, feed’, a relation of *etan ‘eat’ (from which English gets eat).
=> eat

etch (v.)

1630s, "to engrave by eating away the surface of with acids," from Dutch etsen, from German ?tzen "to etch," from Old High German azzon "give to eat; cause to bite, feed," from Proto-Germanic *atjanan, causative of *etanan "eat" (see eat). Related: Etched; etching. The Etch A Sketch drawing toy was introduced 1960 by Ohio Art Company.

1. Hydrofluoric acid of Porcelain Etchant and phosphoric acid of UNI- ETCH are severe eye and tissue irritants.

磁器酸エッチング剤のフッ化水素酸とUNI- ETCH のリン酸は強い目と組織の刺激物である。

2.More often，all of the materials exposed to the etchant have a finite etch rate.

通常、エッチング剤に暴露されたすべての材料は一定のエッチング速度を持っている。

3.We inspect etch channel density of the seed piece by piece.

低腐食トンネル：低腐食トンネル密度を確保するために、種結晶の腐食トンネル密度をブロックごとに検出した。

4.Finally the structures were released in a 49%HF etch .

最後に49%Fでエッチングしてこれらの構造を形成した。

5.More often，all of the materials etchant have a finite etch rate.

剤中の材料はすべて一定のエッチング速度を持っている。