吸烟导致每年有1万人死于慢性肺病。10,000 deaths a year from chronic lung disease are attributable to smoking.不用说，有肺病的人不应吸烟。It goes without saying that if someone has lung problems they should not smoke.每天上班我都要医治那些因吸烟患上肺病的垂危患者。Every worki...
负荷增大, 熔敷金属试样的磨损也呈增加趋势.Moreover , the wear of deposited metal samples increases with load increasing.通过试验研究了焊条药皮碱度对熔敷金属脱硫脱磷行为的影响.Effect of basicity of electrode coating on desulphidation and dephosphorization is studied.冷...