要使得同种液体获得的一样的角变形速度,高温时要比低温时施加小一些的切应力
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乘务员的救生衣储藏在安全演示用品包内,正常情况下可以为旅客安全演示使用,紧急情况下可以将救生衣作为逃生用品。
Greyhound Research Chief Analyst and CEO Sanchit Gogia said better skilled jobs, including coding and maintenance, are likely to remain unaffected, given their scarce (10) .