helix drum的用法和樣例：
例句
- The paper introduces tbe bi-efficient strong spiral rotary drum and itscutting tools's structural features, and trial conditions.
介紹了高效強力螺旋滾筒及其截割刀具的結構特點(diǎn)，以及工業(yè)性試驗情況。 - Based on the features of the operating mechanism of the shearer, the optimization methods of the parameters of the screw drum are introduced.
根據螺旋滾筒采煤機工作機構的特點(diǎn)，介紹了螺旋滾筒參數的優(yōu)選方法。
