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学界对张湛注《列子》所附《列子叙录》存有质疑,认为非刘向所作,是后世伪造。文章对历代质疑考辨后认为,流传至今的《列子叙录》确实出自刘向之手。 相似文献
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作为柯达首款1200万像素的家用相机,Z1275一经发布就给人无比的震撼,它不仅具有1200万的超高像素,更可贵的是还拥有5倍光学变焦的小长焦焦段,另外还拥有静态输出高清画质的能力。 相似文献
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The object of this paper is to evaluate the removal of disinfection by-products formation potential by artificially intensified biological activated carbon(BAC) process which is developed on the basis of traditional ozone granular activated carbon (GAC). The results show that 23.1% of trihalomethane formation potential (THMFP) and 68% of haloacetic acid formation potential (HAAFP) can be removed by BAC, respectively. Under the same conditions, the removal rates of the same substances were 12.2% and 13-25% respectively only by GAC process. Compared with GAC, the high removal rates of the two formed potential substances were due to the increasing of bioactivity of the media and the synergistic capabilities of biological degradation cooperating with activated carbon adsorption of organic compounds. BAC process has some advantages such as long backwashing cycle time, low backwashing intensity and prolonged activated carbon lifetime, etc. 相似文献
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