初步概算 meaning in English

initial budget estimates
initial estimates
initial proposal

Its main measures are : correct defining design - limited , ensuring accuracy of investment - appraised ; finishing works of optimally selected a tentative program - not exceeding investment - appraised ; by means of approved tentative program controlling design of constuction drawing ; concerning with investment of construction drawing not exceeding budget of tentative program ; managing changed - design , establishing assignment system of investment , reforming system of management of earning - way
其主要措施有：正确确定设计限额，保证投资估算的准确性；加强设计管理，重视方案选择，做好初步设计方案的优化和比选工作；严格按批准的初步设计控制施工图设计，保证施工图预算不突破批准的初步概算；加强设计变更的管理工作，控制不合理的设计变更；实行设计经济责任制，建立投资分配考核制，改进设计收费方法。