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延脆转化
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延脆转化
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brittle-ductile conversion
延脆转化
材料由于不同物理力学因素(温度、水、压力)的影响引起微观破坏机制(位错运动和裂纹化)的变化,从而导致宏观破裂形态从脆性断裂到延性破坏转变的现象。
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landforms and landscape devastation
Land for mulberry cultivation
land for rural residential building
land for tertiary uses
land founctions
land function classification
land geophysical exploration
land grading
land grant college
land hierarchy
land information database
land information management
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landing area selection
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landing flight test
landing guidance system
landing impact test for lunar probe
landing impact test for reentry capsule of manned spacecraft
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landing rocket
landing site system
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