两晋、南朝时重要措施之一,即以土著为断。指以现居地为准,将人户著之于籍。其旨意、方法因时而有差异。西晋武帝太康五年(284),汝南王司马亮、司空卫瓘上疏,咸用土断,使举善进才,各由乡论,以纠九品中正制之流弊,是为土断之始。
混凝土断裂假说 hypothesis for concrete fracture
冻土断裂力学 fracture mechanics of frozen soil
混凝土断裂试验规程 concrete fracture test norm
混凝土切断机 concrete cutting machine ; concrete cutting mvery singleine ; concrete cutting mveryine
土壤诊断 soil diagnosis
诊断土层 diagnostic soil horizon
土壤诊断学 soil diagnostics
诊断表土层 diagnostic surface horizons
本文方法同样适用于其它混凝土断裂模型的断裂参数的计算。
The method is also valid to be used for fracture parameter computations of other fracture criterions of concrete.
岩土破损力学是不同于岩土断裂力学和岩土损伤力学的新理论。
Breakage mechanics is a new theory different from fracture mechanics and damage mechanics.
通过试验得出复掺矿物掺合料是改善混凝土断裂脆性的有效途径之一。
The addition of mineral admixtures is one of the effective approaches, which can improve fracture brittleness of high compressive strength concrete.
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