在一定温度和压力下,由物料组成计算出的,且,该进料状态为()。
A.过冷液体
B.过热气体
C.汽液混合物
D.饱和液体
参考答案:B
—What did he say to you just now?
—He told me that he would leave for Jinan .
A.the next week
B.next week
C.the following week
D.following week
夹紧机构的增力比指的是夹紧力与原始作用力之比,其值通常大于1.机构的增力比越大,行程()。
A、越小
B、越大
C、不大不小
D、适中