diversionn.转向；转移；娱乐活动；临时绕行diversional therapist康乐治疗师diversion and closure导截流Diversion tunnel plug导流洞堵头diversion certificate转运证明书diversion power system引水发电系统diversion angle effect取水角效应diversion construction导流工程diversion tunnel inlet小湾导流洞diversion of attention注意转移diversion-belt sizer皮带式分级机