Author: Edgar SnowPrice: 15 yuanPages: 190Publisher: Liberation Army Publishing House“The story of Mao’s life is a ric......

Quantitative structure activity relationship (QSAR) studies were performed on 45 anthranilic acid derivatives for their ......

Thirteenα-methylene aromatic araminenone and fourα-methylene aromatic aminoketones were prepared by modified Mannich r......

The compartment was empty.I sat down by the window andopened a book.The door slidopen and a man with a largesuitcase ca......

想要拥有一个愉快的假日,你必须在出发前做好充分的准备。选择一个合适的目的地是愉快旅行的第一步。An unpleasant destination c......

I was born into a rural family inthe early 1970s. My illiterate,honest, hardworking parentshad altogether seven childre......

A new strain of Pleurotus citrinopileatus, Ninghuang No.16, suitable for cultivation on substrates containing pine and f......

Extralevator abdominoperineal excision and pelvic exenteration are mutilating operations that leave wide perineal wounds......

本文研究了锰（Ⅱ）－水扬基荧光酮－溴化十六烷基三甲，在０．２１～１．６μｇ／ｍＬ范围内具有线性关系。检测限为０．２１μｇ／２５ｍＬ。本法灵敏度高，用于测定多种茶叶中的微量锰，结果......

Three flavonoids have been isolated from the leaves of Glycyrrhiza uralensis Fisch(licorice,Leguminosae).The structures ......

针对自然场景中植物叶片图像分割效果不佳,难以从含有多个叶片的图像中提取出完整叶片区域的问题,提出了一种叶片区域的快速多阈值......

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