A new method for fabricating micro - optical elements with aspherical outlines is discussed.讨论了一种制作非球面微光学元件的新方法.The natural properties and characteristics of shellac resin and its application in fabricating optical are d...

prefabricated的音标：prefabricated的英式发音音标为：[ˌpri:'fæbrɪkeɪtɪd]prefabricated的美式发音音标为：[]...

After comparison, prefabricated piles of reinforced concrete are chosen.通过分析比较，确定选用钢筋混凝土预制桩。...high-quality, Scandinavian prefabricated wooden homes.斯堪的纳维亚优质的预制木屋The little prefabricated hut was lifted away by a huge cra...