We conclude that both high myocardial adenosine level and high vagal tone may result in sinus bradycardia and A-V block.

实验结果提示：高腺苷含量及高迷走神经张力均可以起窦性心率减慢及房室传导阻滞。

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Usage: suitable for precise lathing of rotor outer circle and commutator that with big shaft diameter and V block can not be used.

用途：适用于V型块无法使用的较大轴径的转子外圆或换向器的精车。

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Compared with the traditional jig using V-block, this jig is of simple structure and easy assembling.

与V形块定位夹具相比，该夹具具有结构简单、制造及装配工艺性好等特点。

youdao

Compared with the traditional jig using V-block, this jig is of simple structure and easy assembling.

与V形块定位夹具相比，该夹具具有结构简单、制造及装配工艺性好等特点。

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