etch
英 [et?]
美[?t?]
- vt. 蚀刻；鲜明地描述；铭记
- vi. 蚀刻
- n. 刻蚀；腐蚀剂
GRE低频词常用词汇
词态变化
第三人称单数:?etches;过去式:?etched;过去分词:?etched;现在分词:?etching;
助记提示
1. "engrave by eating away the surface of with acids".
2. eat => etch.
2. eat => etch.
中文词源
etch 蚀刻
来自词根ed, 吃，词源同eat, edible.
英文词源
- 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.
双语例句
- 1. Hydrofluoric acid of Porcelain Etchant and phosphoric acid of UNI - ETCH are severe eye and tissue irritants.
- 瓷酸蚀剂的氢氟酸和UNI-ETCH的磷酸是一种强烈的眼睛和组织的刺激物.
来自互联网
- 2. More often, all of the materials exposed to the etchant have a finite etch rate.
- 通常, 所有暴露在刻蚀剂中的材料都具有一定的刻蚀速率.
来自辞典例句
- 3. We inspect etch channel density of the seed piece by piece.
- 低腐蚀隧道:为确保低腐蚀隧道密度,我们对晶种的腐蚀隧道密度进行逐块检测.
来自互联网
- 4. Finally the structures were released in a 49 % HF etch.
- 最后在49%F中腐蚀形成这些结构.
来自互联网
- 5. More often , all of the materials etchant have a finite etch rate.
- 剂中的材料都具有一定的刻蚀速率.
来自互联网