The changes of ECG in toad before, at the same time and after normal respiration by using chloroform are recorded through digital ECG machine.

用数字式心电图机记录蟾蜍用氯仿熏前、熏后即刻和恢复正常呼吸后的心电图的变化。

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Composite coating surface is smooth, thick, low loss, strong anti-drop capabilities, does not affect the kinds of taro field normal respiration and growth.

复合包衣的表面光滑，厚度适中，脱落率低，抗摔能力强，不影响种芋正常的呼吸作用和田间生长。

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"The airflow of normal human respiration is typically below about two meters per second, " Wang explained.

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