Why is the product of Head likely to appeal to players who suffer from tennis elbow?
A.Because it can reduce the shock experienced by the player's arm by more than 50%.
B.Because it can achieve a gradual damping effect.
C.Because it promises to improve athletes' performances with electronic muscle.
D.Because residual vibrations in the racket are stronger than in conventional rackets.
第2题
智能旋进漩涡流量计流量积算仪由温度和()、流量传感器通道、微处理器单元组成,并配有输出信号接口.
A.压力传感器
B.压力变送器
C.压力表
D.压力检测模拟通道
第9题
智能旋进漩涡流量计的旋涡发生体的作用是().
A.节流
B.使旋涡流加速
C.使旋涡流进行旋进式二次旋转
D.产生旋涡流
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