国产成人亚洲精品无码青app,白丝紧致爆乳自慰喷水,国产疯狂女同互磨高潮在线观看,jizzjizz少妇亚洲水多

Scanning tunneling microscopic images of doped polyaniline (PANI) with HCl are presented. Parallel chains with average separation of 0.4 nm are clearly visible, and the measured distance between the nearest two maxima in the polymer chain is about 1.04 nm. Molecular-mechanic calculations were used to optimize the conformation of a model polyaniline chain, and have yielded numerical values which agree well with measurements taken from the STM images.