The silica surfaces polished with ion beam of 400ev energy and 100mA density in 35°incident angle for 2hrs was found to have a roughness less than 0.5nm . The SFM was also used to measure the surfaces to be bonded by SAB method and the deformations of the surfaces during contact each other. The micro roughness of the surfaces was found to produce great effect on the SAB strength. The rougher the surfaces are, the weaker the bonding forms.

本文首先將原子力顯微鏡應用于一種新的超光滑表面離子束拋光的工藝研究亚洲国产污黄网站在线观看，搞清了表面納米級微觀形貌與離子束拋光參數(shù)之間的關系，在離子能量為400V色久资源视频、束流密度為100mA和入射角為40°時国产熟女真实乱，經過兩個小時以上的拋光，硅（111）表面微觀形貌在1μm×1μm的范圍內從拋光前的5nm下降到0.4nm久久老熟女一区二区。

At 81, the poet John Ashbery is making his solo debut as professional artist with a modest but polished exhibition of two dozen small collages at the Tibor de Nagy Gallery in New York...

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THE rocks of the southern California mountains, in the Joshua Tree National Monument and the Yosemite Valley, rise in polished granite towers from the desert floor.

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It had those beautiful ruddy and tawny tints that lend to Florentine bronze that warm living look so much preferable to the gray-green aspect of common bronzes, which might easily be mistaken for statues in a state of putrefaction: satiny gleams played over its rounded forms, doubtless polished by the amorous kisses of twenty centuries; for it seemed a Corinthian bronze, a work of the best era of art--perhaps molded by Lysippus himself.

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