The invention relates to a while random copolymerization polypropylene (PP-R) light resistant pipe which comprises a white (PP-R) water pipe.
本发明涉及一种白色无规共聚聚丙烯阻光管。
Properties White powders, inodorous, atoxic, non-pollution, non-transference, light resistant, weak acid or alkali resistant, stable storage, insoluble in water and other organic solvents.
性质白色粉末，无味无毒、无污染、无迁移、耐光照、耐弱酸、耐弱碱，贮存稳定，不溶于水及其它有机溶剂。
Packaging and storage-Preserve in tight, light-resistant containers in a cool place.
包装与保藏—包装要包紧，保存在避光，阴凉的地方。
Storage: Kept in a well-closed, light-resistant, dry and cool place.
贮存：避光、干燥阴凉处封闭贮存。
The results showed that the weak light-resistant ability of tomato has significant hereditary effects on dominant character and gene interaction while there exists part additive effect of heredity.
结果表明：番茄耐弱光性以显性遗传和基因互作效应为主，存在部分加性遗传效应。
The invention discloses a cultivation method of Jidong 216, weak light-resistant breed of tomato in protected areas.
本发明公开了一种保护地番茄耐弱光品种冀东216的培育方法。
The cultivated weak light-resistant breed of tomato in protected areas, Jidong 216 has the advantages of low production cost, high product yield and good quality of fruit.
培育出的保护地番茄耐弱光品种冀东216生产成本低、产品产量高，且果实品质好。
Non-poisonous, good light-resistant and heat-resistant color was used for manufacture of the color master batch applied for PP-R, PP-B pipe materials.
采用无毒、耐候性好、热稳定性高的颜料制得PP-R、PP-B管材料专用色母粒，考察了色母粒对PP-R、PP-B管材料力学性能、耐热性、耐光性、卫生安全性的影响。
Non-poisonous, good light-resistant and heat-resistant color was used for manufacture of the color master batch applied for PP-R, PP-B pipe materials.
采用无毒、耐候性好、热稳定性高的颜料制得PP-R、PP-B管材料专用色母粒，考察了色母粒对PP-R、PP-B管材料力学性能、耐热性、耐光性、卫生安全性的影响。
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