摘要：Three-dimensional(3 D)gravitational and magnetic exploration is performed using aerial measurement tools,however,this has difficulties with measuring-height design and the construction of a joint-interpretation *** present,the height in such experiments is set according to the measurement scale,and the distribution characteristics of anomalies are not fully ***,we present the idea of using the attenuation characteristics of a singular-value spectrum to evaluate the contributions of various measurement heights and multi-height combinations for inversion to correctly and reasonably design appropriate measuring heights and the number of various measurement heights to be *** jointgradient Euler-deconvolution method can accurately obtain the distribution of geological bodies from 3 D gravitational and magnetic data at an improved resolution,and experimental tests confirm these ***,an actual 3 D aeromagnetic-data-acquisition and inversion test were carried out in the vicinity of the Zhurihe Iron Mine in Inner *** fl ight-height diff erence was set to 60 m,and the specifi c distribution of lodes was obtained by the joint-gradient Euler-deconvolution *** provides a reliable basis for future detailed exploration and proves that the methods presented in this paper have good practicalapplication eff ects and prospects.

摘要：本文针对森工企业伐区设计出材和实际出材存在的差值 ,通过调查和核查等手段 。

摘要：目的探讨复治肺结核患者耐药情况及相关危险因素,为制定肺结核防治策略提供相关参考依据。方法统一设计的调查问卷,选择全国22家医疗机构2009-2012年确诊的复治肺结核患者377例,按是否耐药分为耐药组和敏感组,比较两组在基本情况,首次治疗情况及既往史方面的差异,分析复治肺结核患者耐药的相关危险因素。结果复治肺结核患者中共148例耐药患者,耐药率为39.26%(148/377),经单因素分析结果表明结核病接触史(χ~2=6.375,P=0.012);治疗前症状及体征评分(χ~2=11.899,P=0.005);既往治疗次数(χ~2=10.209,P=0.001);既往用药个数(χ~2=3.986,P=0.046)及既往用药不良反应(χ~2=4.468,P=0.035)差异有统计学意义。多因素非条件logistic回归分析表明治疗前症状及体征评分≥6分和既往治疗>2次是耐药发生的独立危险因素,OR (95%CI)分别为1.894 (1.228~2.922)和2.166(1.074~4.370)。结论复治肺结核患者耐药率较高,服药不规律及既往治疗次数增多增加了复治肺结核患者耐药风险。