带式输送机的牵引力调整
参考答案:
(1)在滚筒上包上皮革或橡胶以增加摩擦力
(2)改变带的环绕方式以增大包角
The film was _____ interesting _____ everyone would watch it. [ ]
A. too, to
B. enough; to
C. so; that
D. such; that
衡量公司盈利能力的指标有()
A、销售毛利率
B、销售净利率
C、资产收益率
D、股东权益收益率
E、主营业务利润率