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实行义务教育的学校在挑选教学用水彩颜料时、多以不同展色剂的颜料及价格为判断标准。在日本,叫做“JIS”日本工业规格,作为根据工业标准化法制定的国家规格,规定水彩颜料颜色数量为37种。各制造商根据此标准及每套颜料数最生产并销售12种套装颜料。因此,颜料的色彩构成也完全由制造商决定,固物而异加之现今许多 JIS 规格外颜料也用于数学。孩子们使用的水彩颜料更是色彩繁多,光说红色,就有各种红色。
Schools compulsory education in the selection of teaching watercolor paint, paint more with different colors and prices as a criterion. In Japan, it is called the “JIS” Japanese Industrial Specification, and as a national standard according to the Industrial Standardization Law, there are 37 kinds of colors of watercolors. Each manufacturer produces and sells up to 12 suits of pigments based on this standard and each set of pigments. Therefore, the color composition of the pigment is also completely determined by the manufacturer, solid content varies with many of today’s JIS external colors are also used in mathematics. The children’s watercolor paint is more colorful, light red, there are a variety of red.