A method for the jointdetermination of si, p, Mn, Cr in general and low alloy steels is discussed by means of spectrophotometry. The method is simple, rapid and easy to master.
探讨了采用分光光度法对普通钢、低合金钢中的硅、磷、锰、铬进行联合测定。
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Conclusions: The jointdetermination of various TBAb in serum was a supplementary diagnostic method to screen those infected with tubercle bacillus in patients with various digestive diseases.
结论：联合检测多种血清抗结核抗体是筛检消化疾病患者结核抗原感染的辅助诊断手段。
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China has the determination and confidence to blaze a new path of major-country relationship based on peaceful co-existence and sound interaction through joint efforts with the relevant countries.