本文研究高屈光度眼用透镜消除离轴像散的非球面化模式.In this paper, model of aspherisation for higher - dioptry spectacle lens is investigated.在腔内插入一定厚度的布儒斯特片可以部分消除腔的像散.The resonator ( astigmatic ) can be compensated by inserting a suitable thickn...
Dioxin was the ingredient in Agent Orange, used to defoliate Vietnam.越南战场上用于毁灭林区的“橙剂”，其成分是二氧杂芑。There's also dioxin, a byproduct of paper manufacture and waste incineration.还有二恶英, 纸生产和废物燃烧的副产物.The iron ore sintering ...
Modern image is used by New Moon School to deconstruct the image pattern of classical poetry.新月派现代意象的营造对古典诗歌意象模式的解构.Let's ignore the active load in place of a plate resistor and let's deconstruct the circuit.让我...