日常维护时,应检查压溃管是否触发,若()则代表压溃管可能遇到非正常纵向冲击造成触发,应更换新的压溃管使用。
A.触发判断装置剪断
B.压溃管已走行程
C.压溃管油漆爆裂
D.压馈管掉漆
E.压溃管安装螺栓松动
A.触发判断装置剪断
B.压溃管已走行程
C.压溃管油漆爆裂
D.压馈管掉漆
E.压溃管安装螺栓松动
turbine-driven fans.
The car without wheels has been called a “flying car” , and, in a sense, that’ s just what it is; however, it will not back out of the family garage, start down the street, and then suddenly go quickly upward heading for some distant point. On the contrary, to avoid problems in aerial navigation, the wheel-less vehicle probably will travel no more than three inches above road surface. It will travel over fairly rough road and even over smooth water.
The inevitable problems of maritime regulations, severe weather conditions, and running out of fuel in remote areas all will require new concepts of operation, servicing, and vehicle regulation.
1.The author believes that cars of the future _______ .
A、will be replaced by airplanes
B、will have wheels unlike those of today
C、will u s e columns of air instead of wheels
D、will u s e wheels without tires
2.Cars of the future will run _______ .
A、without annoying noise
B、without fuel
C、much more smoothly
D、on a number of fans
3.The car without wheels has been called a “flying car” because _______ .
A、it travels a few inches above the ground
B、it can fly as a plane does
C、it moves at a very high speed
D、it can travel over smooth water
4.Where is a wheel-less car least fit to travel_____ .
A、Over soft land
B、Over rough country roads
C、Over highways
D、Over waterfalls
5.Wheel-less cars will _______ .
A、eliminate all traffic problems
B、create new traffic problems
C、eliminate parking problems
D、both A and C
B.也可采用将身体(头部除外)置于4℃水中降温法,同时要不断摩擦四肢,防止血液循环停滞,促使热量散发
C.危重者可采用酒精擦浴或冰水擦浴,降浊时注意防止因降温过快引起虚脱
D.同时积极送往医院
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