常見例句雙語例句Variability in the development of barrier-free design service life of persons with disabilities.多變性發(fā)展的無障礙設計服務于殘疾人的生活。With time going on, more and more bridges will reach or approach their design service life and the structural damages will appear because of kinds of reasons.隨著時間的推移，越來越多的橋梁將達到或接近其設計基準期，或因為各種原因發(fā)生結構性損傷。On the condition that the design service life is confirmed, the design reliability level of the chemical structures should include the corrosive environment and its effect on the structures.因此，在設計基準期預先確定條件下，化工結構的設計可靠度水平應綜合考慮腐蝕性環(huán)境及其對建筑結構的影響特點來決策。 返回 design service life