水轮机出力
参考答案:
指水轮机主轴输出功率,以N表示,单位KW,N=9.81QHη。
It is said that in Australia there is more land than the government knows _______.
A.it what to do with
B.what to do it with
C.what to do with it
D.to do what with it
民俗的()是指民俗能统一人们的思想和行为,使社会成员保持向心力和凝聚力。
A.维系功能
B.娱乐功能
C.规范功能