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...
Happiness grows at our own firesides, and is not to be picked in strangers'garden.幸福生长在我们的火炉边, 而不能从别人的花园中采得.Happiness grows at our own firesides and is not to be picked in strangers'gardens.幸福是生长在我们自己的家里,它不能从陌生...
建造工人必须把新建房屋的屋顶固定得更牢靠些。Builders must fasten down roofs of newly-built homes more securely.地面摇晃，周围房屋的墙体在他们身边倒塌。The earth shook and the walls of neighbouring houses fell around them.许多房屋的卖主仍然陷在经济衰退的困境中。Many home sellers rem...
That just shows your ignorance, Bluebeard.这说明你什么也不懂, 蓝胡子.Where is the little golden key, Alice? asked Bluebeard.“金色的小钥匙在哪里, 爱丽丝? ”蓝胡子问.As she handed him the key, Bluebeard noticed the blood on it.当她把钥匙递给他时, 蓝胡子看到上面的血渍....
A photographer recorded the scene on video for posterity.摄影师用摄像机为后代记录下了这个场景。Their music has been preserved for posterity .他们的音乐已为后世保存起来。Byron affected to despise posterity.拜伦假装轻视后裔....