vi.<拉>休止
Each layer is coated with a uniqne adhesive of high - tach or low - tach .
每层都涂上一种独特的高粘或 低粘 的胶粘剂.
He's tachycardic! Wide - complex looks like v - tach!
心动过速! 波形宽而多变像是室性心动过速!