下载APP
【多选题】
线束布线经过高温零件时，与热源的距离需满足以下哪些条件，如不能满足，需给线束加阻燃隔热棉包扎的保护措施，以抵抗辐射热源或在热源靠近线束附近增加隔热板（）
A.
带隔热板的排气系统：80mm以上
B.
无隔热板的排气系统：150mm以上
C.
排气歧管：至少30mm
D.
发动机缸体：30mm以上
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Skyscrapers and Environment In the late 1960's，many people in North America turned their attention to environmental problems，and new steel-and-glass skyscrapers were widely criticized. Ecologists poin...
A.
The exterior surrounding air is heated
B.
The building materials are very expensive
C.
Construction time is increased
D.
Extra air-conditioning equipment is needed.
【单选题】用隔热板将刚性绝热壁容器分成两半，两边充入压力不等的空气（视为理想气体），已知p右>p左，讲隔板抽去后，
A.
Q>0 W<0 △U>0
B.
Q=0 W<0 △U>0
C.
Q=W≠0 △U=0
D.
Q=0 W=0 △U=0