pivotal line 中文意思是什麼
pivotal line
解釋
樞軸線-
The bridges are pivotal stronghold of the whole road. it becomes more and more popluar that some existing bridges betray multifarious structure damage and the limitations below the anticipative functions inevitably by reason of structure aging or vehicle load increasing or adverse environment or maintenance deficiency. lt results in not only the local bottleneck of the line and hidden trouble to the passing vehicle if the defective bridges are not duly maintained and reinforced. as a result, the bridge evaluation is specially important to the maintenance and strengthening. futhermore, we can not demolish and rebuild only but adop corresponding measures according ad temporal condition when the bridges are deemed to have defectiveness. so it accords with the situation of a country that the reinforcement and other upgrade measures aim at the bridge attention
由於結構自然老化、車輛荷載增加、不利環境影響以及養護維修欠缺，一部分橋梁不可避免地要暴露出各種結構損傷和既有橋梁不滿足規定功能要求的問題越來越普遍。如果這些技術狀況不佳的橋梁得不到及時的維修和加固，不僅會造成整條線路的局部瓶頸，而且還會對通行的車輛造成極大的隱患。因此，橋梁評估作為橋梁維修和加固的依據就顯得尤為重要；此外出現了技術狀況不佳的橋梁應根據實際情況採取相應的措施，而不能僅僅採取拆除重建的方法，因此加固和其他升級方法是目前比較符合中國國情的橋梁改造措施。 -
On the background of aeronautics and astronautics requirement, along with the line of modularization of fiber optic smart structure, aimed at the safety matter of aerofoil pivotal parts, build optic fiber smart layer self - diagnosing system
以航空航天需求為背景，以光纖智能結構的集成為主線，針對飛機機翼關鍵部件安全性問題，建立了基於光纖智能夾層的自診斷系統。
分享友人