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纳米陶瓷

纳米陶瓷作为高新科技材料应用广泛。贴于“神舟七号”飞船外表面的“太空”纳米陶瓷,具有永久、稳定的防静电性能,且有耐磨、耐腐蚀、耐高温、防渗透等特点。采用氧化锆材料精制而成的纳米陶瓷刀,具有金属刀无法比拟的优点:刀刃锋利,能切割钢铁等物质。能削出如纸一样薄的肉片;硬度高,其耐磨性是金属刀的60倍;完全无磁性;不生锈变色,健康环保;可耐各种酸碱有机物的腐蚀;为全致密材料,无孔隙、不沾污、易清洁。纳米陶瓷充分体现新世纪、新材料的绿色环保概念,是高新技术为现代人奉献的又一杰作。

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    Is getting a black belt(腰带) on your life's to-do list? Then this elderly woman in San Francisco just might be your hero.
    Just two years before her 100th birthday, Sensei Keiko Fukuda has become the first woman to achieve a tenth-degree black belt --- the highest rank in Judo (柔道). Fukuda is now one of only four living people who have earned the tenth-degree black belt. Throughout history, only 16 people have ever achieved this honor.
    Fukuda began practicing Judo in 1935 and is the only surviving student of its founder, Kano Jiguro.
At her teacher's requirement, she learned English to help spread Judo internationally.
    During a time when getting married, building a family and becoming a housewife were the norms(行为标准),Fukuda broke from tradition, continuing Judo instead of getting married.
    “All I did was Judo ... This was my marriage,” Fukuda replied tearfully to the San Francisco Chronicle. “This is when my destiny (命运) was set. I just imagined how long the road would be.”
    She described the Jiguro's school as “old-fashioned and sexist(性别歧视的) about belts and ranks”. In fact, an edict(法令) that prevented women from achieving any higher than a fifth-degree black belt kept Fukuda at that level for 30 years. She finally got the sixth degree in 1972 when a women's division(分部)was created.
    Fukuda thinks Judo and her life to be “gentle, kind and beautiful, yet firm and strong, both mentally and physically”. Fukuda says this kind of beauty is not external(外在的). She explained. “I believe this inner beauty is true beauty… All my life this has been my dream.”
    Her dream was turned into reality, and the 98-year-old Sensei Keiko Fukuda continues to teach Judo three times a week at a women’s Judo training center.