Rabbit brady arrhythmia model due to acute sinoatrial node damage was made by overlaying 30% formaldehyde on the surface of sinoatrial node area.
用30%甲醛外敷窦房结区表面，造家兔窦房结急性损伤致缓慢型心律失常模型。
A new type of materials of composite alloy coating with ultra-fine WC for submerged overlaying welding on the surface of continuous casting machines rollers is studied in this paper.
本文研究了一种应用于连铸辊的含超细wc粉末的埋弧堆焊复合敷层材料。
The sealed surface is made of hard alloy of cobalt by overlaying welding. Through thermal treatment, the hardness of disc in improved.
密封面用钴基硬质合金堆焊而成，阀瓣经热处理，提高了硬度。
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