改制氧气表浮标定碳时一般常用医用氧气表控制氧气流速度。由于塑料浮标较重,气流速度很大时,才能浮起。我们将塑料浮标换成软木浮标,就能准确的指示较小的流速。方法是将氧气表中塑料浮标倒出,用穿孔器做一个直径约8毫米、厚约9毫米的软木浮标,放回玻璃管中即成。这样定碳时所需的气流速度可使 Restructuring oxygen meter buoy carbon commonly used when the general control of oxygen flow meter oxygen flow rate. Due to heavier plastic buoys, the air flow rate is great, to float. We change the plastic buoy into a cork buoy that accurately indicates the smaller flow rate. The method is to pour out the plastic buoy in the oxygen meter, use a punch to make a cork buoy with a diameter of about 8 mm and a thickness of about 9 mm, and replace it with a glass tube. This fixed carbon air flow rate can be required