那边山上有一片红丹丹的山菜花。
There is a large area of flaming red camellia on the mountain beyond.
以废铅蓄电池为原料，采用湿法、火法联合冶炼技术制备黄丹和红丹。
A wet-firing combined process has been developed for preparing yellow lead and red lead from scrap lead batteries.
试验结果表明，亚磷酸钙涂料的防锈性能与红丹防锈涂料相当，优于锌铬黄、磷酸锌防锈涂料。
It has shown that the antirust properties of calcium phosphite coatings are similar to the red lead antirusting coatings and superior to the zinc chromate or zinc phosphate antirusting coatings.
试验结果表明，亚磷酸钙涂料的防锈性能与红丹防锈涂料相当，优于锌铬黄、磷酸锌防锈涂料。
It has shown that the antirust properties of calcium phosphite coatings are similar to the red lead antirusting coatings and superior to the zinc chromate or zinc phosphate antirusting coatings.
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