１．高原施工特点及要求 高原地区空气稀薄，氧气含量低、气温低、多风沙且多雷暴。工程机械在高海拔地区将会出现功率下降、启动困难、积炭严重、低速喘震、涡轮增压器运行曲线与发动机运行曲线不匹配、机温高、液压软管和橡胶密封件以及金属构件发生冷脆性断裂等现象。在高原 1. Plateau construction characteristics and requirements Plateau region thin air, low oxygen content, low temperature, more sand and more thunderstorms. Construction machinery at high altitude will appear power down, difficult to start, serious coke, low-speed surge, turbocharger operating curve and the engine running curve does not match the machine temperature, hydraulic hoses and rubber seals and metal components Occurrence of cold brittle fracture and so on. In the plateau