确立建筑物所需的保护措施时要考虑到它的预期用途，设计使用年限(见en 1990)，以及维护计划和结构所受作用。

P the required protection of the structure shall be established by considering its intended use, design working life (see en 1990), maintenance programme and actions.

youdao

确立建筑物所需的保护措施时要考虑到它的预期用途，设计使用年限(见en 1990)，以及维护计划和结构所受作用。

P the required protection of the structure shall be established by considering its intended use, design working life (see en 1990), maintenance programme and actions.

youdao