“eschel”的英英意思

单词 eschel 释义 eschel|l|[a. Ger. eschel, dim. of esche ashes.]†a. (See quot. 1753.) Obs. b. The third quality of powder blue.[1726Linckius in Phil. Trans. XXXIV. 202 Tum ad separationem pulveris illius cinerei albicantis levioris, quem Eschel appellan...