摘要
介绍了企业建立有效的内部控制应当考虑的基本要素:内部环境、风险评估、控制活动、信息与沟通、内部监督,企业通过内部控制能合理地保证单位经营管理合法、资产安全、财务报告及相关信息真实完整,提高经营效率和效果,促进单位实现发展战略。
Introduces two methods of treating hard roof of fully mechanized mining face : enforced top coal caving method and pressure water injection weaken roof method, also introduces the effects and the advantages and disadvantages of the two methods, elaborates the technique and selection of the deep hole blasting parameters of two roadways break tip roof method, discusses the mechanism of pressure water injection weaken roof and the arrangement water injection hole as well as the process of pressure water injection.
出处
《山西焦煤科技》
2009年第2期37-40,共4页
Shanxi Coking Coal Science & Technology
关键词
内部控制
要素
内部环境
风险评估
信息与沟通
内部监督
Interior control
Key element
Internal environment
Risk assessment
Analysis of Interior
Control Element