求翻译：待平整完成至设计标高后、碾压完成后进行各类设施开挖。开挖过程中必须根据土质情况确定合理的开挖放坡，采取必要的支护措施，保证施工安全是什么意思？

To be smooth completion to the design elevation, after the completion of the RCC types of facilities excavation. During excavation must be based on soil conditions to determine a reasonable excavation grading, and take the necessary support measures to ensure construction safety

Designed to be flat finish to elevation, after crushing after digging out various types of facilities. digging out the soil must be determined in accordance with reasonable dug up on the hill, take the necessary measures to ensure that the support construction safety

Treats completes smoothly after the design elevation, the roller compaction completes carries on each kind of facility to excavate.Excavates in the process to have according to the soil texture situation to determine reasonable excavates puts the slope, takes the essential supports and protections m

Flat finish to the design level, rolled finish after the excavation of all kinds of facilities. Excavation must be determined based on soil conditions in a reasonable amount of excavation slope, to take the necessary measures to ensure construction safety

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