investigation acts侦查行为investigationn.调查Investigation of Cold Pad-Batch Dyeing冷轧堆染色工艺探讨investigation awareness and survey forms调查意识和调查样式investigation and prospecting technology勘探技术Investigation of rolling spherical joint滚动球铰链的研究Investigation of variable area flowmeter浮子流量检测技术的研究investigation of environmental knowledge环境知识调查Investigation on income and disbursement收支调查investigation and evaluation of resources资源调查评估investigation of geotechnical engineering岩土工程勘察investigation and adjudication separation侦审阻断