trommel 的定义
- a rotary, cylindrical or conical screen for sorting ore, coal, gravel, etc., according to size.
更多trommel例句
- Trommel, trom′el, n. a revolving cylindrical sieve for cleaning or sizing ore.
- Trommel: the word is ultimately the same as “trumpet,” and is probably onomatopoeic in origin; it appears late in Eng.