问题描述：
英语翻译
就是这一段、、= =总是整段整段的看不懂.唉,英语白学了
The importance of proper management of materials is highlighted by the fact that they account for substantial portions of project cost and time.Expert estimates and historical data analysis indicate that materials account for 50±60%of project costand control 80%of its schedule.Major projects are characterized by many items of di?erent nature,overlapped design and construction,and increased rate and degree of changes.These features have exposed and attenuated shortcomings of the traditional clerically-oriented pricefocused approach to managing project materials.Previous studies have identi?ed main symptoms and causes and illustrated the attendant need for signi?cant improvements and systematic approach.For instance,non-availability of items when needed on site is identi?ed as the major and most common and frequent cause of delays in projects and an integrated computer-based materials management system is concluded to produce 10±12%saving in labour cost.The situation is succinctly put in the form of a question reported to have been repeatedly asked by leaders in the industry;as quoted in Stukhart:``How do we achieve effective materials management?''
就是这一段、、= =总是整段整段的看不懂.唉,英语白学了
The importance of proper management of materials is highlighted by the fact that they account for substantial portions of project cost and time.Expert estimates and historical data analysis indicate that materials account for 50±60%of project costand control 80%of its schedule.Major projects are characterized by many items of di?erent nature,overlapped design and construction,and increased rate and degree of changes.These features have exposed and attenuated shortcomings of the traditional clerically-oriented pricefocused approach to managing project materials.Previous studies have identi?ed main symptoms and causes and illustrated the attendant need for signi?cant improvements and systematic approach.For instance,non-availability of items when needed on site is identi?ed as the major and most common and frequent cause of delays in projects and an integrated computer-based materials management system is concluded to produce 10±12%saving in labour cost.The situation is succinctly put in the form of a question reported to have been repeatedly asked by leaders in the industry;as quoted in Stukhart:``How do we achieve effective materials management?''
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