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physical property of wood
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physical property of wood
Encyclopedia
农学
木材性质
释
physical property of wood
木材物理性质
包括木材的比重、含水率和水分存在状态、吸湿性、水分移动,干缩湿胀,还包括力学性质即弹性、黏弹性、强度,热学性质,电学性质,音响性质,光学性质,以及感觉特性即视觉、听觉、触觉等。
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Labor Party of New Zealand
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labor protection supervision
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labor resources
labor safety and accident prevention
labor safety regulations
Labor Security Supervision Regulations
Labor Standards
labor standards law
labor statistics
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labor supply curve
labor supply elasticity
labor’s share of income
labour
labour administrative inspection and supervision
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