It's the same as black people, who seem to be more at risk of sickle cell disease than white people but you're not going to attempt to cure 'blackness' to cure sickle cell.
‘比如说,黑人比白人更容易得镰刀型红血球病,但你不会试图去治愈‘黑肤色’来达到治愈这个病的目的。’
Hence, the Black-cloth Zhuang nationality respect blackness and preserve the tradition of wearing black cloth.
所以黑衣壮才更崇尚黑色,更有效地保持了衣黑的传统。
Applications of black Cr plating, different types of baths and the secondary additives used, and relationship between blackness and hardness of the coating have been summarised.
概述了黑铬镀层性能、黑度与硬度关系,目前出现的工艺类型、辅助添加剂和镀层应用等状况。
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