Finally the structures were released in a 49 % HF etch.最后在49%F中腐蚀形成这些结构.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.Can some one suggest a suitable etch or sequence of etches to achi...
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.Hydrofluoric acid of Porcelain Etchant and phosphoric acid of UNI - ETCH are severe eye and tissue irritants.瓷酸蚀剂...
家家有本难念的经，也都难免互生嫉妒，但总归血浓于水。Families have their problems and jealousies, but blood is thicker than water.“ 电影上总归看得见. ”'I shall see it on the flicks, I suppose.'" 唔, 老猫总归是老猫 ---- 啊, 对不起, 你不要哭!" Well , she's a...
There is a wry sense of humour in his work.他的作品带有一种讽刺意味的幽默。Sharon tells the story of that night with self-deprecating humour.沙伦以幽默自嘲的口吻讲述那一夜的故事。Hugo bore his illness with great courage and good humour.雨果以巨大的勇气和良好的精神状态面对疾...