文章结合工程实例介绍在实验室及现场同条件下预应力混凝土用PVC塑料波纹管的检测技术及试验方法。
With some engineering examples, this article introduces some testing techniques and methods of PVC plastic corrugated pipe used in prestressed concrete, both in labs and on the spot.
方法采用整群抽样与典型调查结合的方法进行现场调查，结合临床检查、生化分析和毒理学方法进行实验室检测。
Methods Using cluster sampling and typical investigation, a spot research was taken while experimental indexes were determined by clinical, biochemical and toxicologic methods.
方法采用现场流行病学调查和实验室检测相结合的方法。
Methods the field epidemiological study and the laboratory tests were performed.
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