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...
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...
东海岸的土地贫脊.The land is barren on the east coast.苏格兰西海岸的这一段完全暴露在大西洋海风前。This part of the west coast of Scotland is very exposed to Atlantic winds.想象一下你正躺在海滩上，倾听海浪有节奏地轻轻拍打海岸的声音。Imagine you're lying on a beach, listening ...
弗兰克·德福特是《新闻周刊》杂志的特派记者。Frank Deford is a special correspondent for Newsweek magazine.他已经投标来拯救这个岌岌可危的周刊。He has submitted a bid to resuscitate the struggling magazine.几年前，大卫·拜恩曾登上《时代》周刊的封面。A few years ago, David Byrne was o...
霍利说独立会计师详细地审查过这些费用。Hawley said these costs were scrutinised exhaustively by independent accountants.会计师约翰·塔尔博特精通数字。Accountant John Talbot is a wizard with numbers.会计师可以任选配备的公车。Accountants can take their pick of company c...