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...
它使火车在通过现有轨道的弯曲处时得以保持恒定的车速。It allows the train to maintain a constant speed through the twists and turns of existing track.实2p轨道的形状是两个分开的变形的椭球.The shape of a real 2 p orbital is two separated, distorted ellipsoids.必须修改贯穿式...
Two alligators rest their snouts on the water's surface.两只鳄鱼的大嘴栖息在水面上。In the movement of logs by water the lumber industry was greatly helped by alligators.木材工业过去在水上运输木料时所十分倚重的就是鳄鱼.Alligators differ from crocodiles ...