Coal screening
[建] 煤的筛选
🧩 词语组成解析
coal
[kol]
n. 煤;煤块;煤堆;木炭;
vi. 上煤;加煤;
vt. 给…加煤;把…烧成炭;
screening
[['skri:niŋ]]
[医] 筛选, 筛分(如普查癌、结核等病), 萤光屏检查
🗣️ 情景例句
That was not the case.
事实并非如此。
How long does it take for a letter to get to California ?
一封信到加利福尼亚要花多长时间？
The seeds must be carefully chosen; they must fall on good ground;
那就必然从精选良种做起，然后将其植入肥沃的土地，