1) Common Diseases of Railroad Steel Bridge
铁路钢桥常见病害
2) common diseases
常见病害
1.
Studies on the preventing from and treating for common diseases of chuneate drum,Nibea miichthioides,in cage culture;
网箱养殖鮸状黄姑鱼常见病害的防治
2.
The analysis of the common diseases of the new-built bridge rubber bearing
新建桥梁橡胶支座的常见病害分析
3.
Connecting with the types,working mechanisms and erection/application situations of the supports that are frequently used on the highway bridge,this paper analyzes on some common diseases of the bridge supports,and puts forward some measures for preventing these diseases.
结合公路桥梁经常使用的桥梁支座类型、活动机理及安装使用情况,分析了桥梁支座的常见病害,并提出了防治病害的若干措施。
3) common faults
常见病害
1.
In this paper the present situation of asphalt pavement is introduced and the common faults influencing running speed and safety are pointed out.
介绍了沥青路面的现状 ,指出了影响行车速度和行车安全的常见病害 ,如开裂、下沉、剥落、泛油、油包、车辙等现象。
6) Steel railway bridge
铁路钢桥
1.
According to the construction background,design details of the typical steel railway bridges at different ages,the development bitter course of steel railway bridge in China was introduced,and some key techniques including high strength material,coupled vibration among bridges and vehicles as well as other difficulties caused by long-span were presented.
针对中国不同时期建造的铁路钢桥及相应的设计、建造背景,阐述了中国铁路桥梁发展的辛酸历程,提出了铁路钢桥仍需解决钢材高强、车桥耦合共振、大跨度带来的一系列振动等关键技术问题。
补充资料：紫薇常见病害及防治
紫薇的常见病害为紫薇煤污病。此病初发期有煤烟状霉层出现，呈点片状，以后逐渐扩大增厚使点片连接。直至覆盖整个叶片。严重时可裂开、翘起和剥落，影响植株进行光合作用。常造成生长不良，花形变小，花量明显减少。
防治方法：①及时防治蚜虫和蚧虫。如受害植株少，株形小，可用人工刮除。②如虫害发生量大，则需喷药防治，防治蚜虫和蚧虫可用40%氧化乐果乳油油1000倍液；或50%三硫磷乳油1500倍液。防治蚧虫宜在若虫大量孵化时进行。③植株种植不宜过密，并应适当修剪，以利通风透光，恶化病菌的生长条件。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条