This paper deals with how thermal inertia and adiabatic effect of an object welding And what flame should be applied in oxy-acetylene welding with silver-copper solder and the high temperature area of flame are also discussed then the effect of free oxygen and free carbon on welding is analyzed.

Effect of safflower injection on oxygen-derived free radicals in patients with angina pectoris;

Relationship study between p21ras expression and oxygen-derived free radicals in gastric carcinoma tissue;

Correlation between senile mild cognitive impairment and metabolize of oxygen-derived free radicals,acetylcholinesterase,blood lipids and inflammatory mediator;

Effect of resveratrol on oxygen free radicals of multiple organs in rats with severe acute pancreatitis of early stage;

Effects of Qidantongmai Tablet on LDH and oxygen free radical of myocardium subjected to ischemia reperfusion in rats;

Comparirasion of serum levels of oxygen free radical in patients undergoing CABG with off-pump technique or cardiopulmonary bypass;

Effects of Jianpi Qinghua Recipe on oxygen radicals and transforming growth factor β1 in renal tissue in a rat model of chronic renal failure with hyperlipidemia;

Protective effect of Astraglus membranaceus on lung injury induced by oxygen radicals;

Intralipid decreases the release of oxygen radicals from phagocytes;

The Effect of Lingqijuangan Liquor(灵芪蠲肝液) on NO and oxygen free radicals on acute hepatic injury;

Changes in oxygen free radicals and comparisons of therapeutic effects of different traditional Chinese medicinal herbs in rats with acute lung injury;

Effects of the Musca domestica L.larvae extract on scavenging oxygen free radicals.;

An experimental study of scavenging oxygen free radicals with garlicin;

Influence of indomethacin on free radical reactions in brain tissues of rabbits with brain injury;