云南松线膨胀性

本数据记录了云南松中线膨胀性的序号、记录本序号、试样序号、干燥时弦向试样尺寸、干燥时径向试样尺寸、湿胀时弦向试样尺寸、湿胀时径向试样尺寸、弦向膨胀性、径向膨胀性、弦向膨胀系数近似值、径向膨胀系数近似值等记录。木材物理力学的各项测定指标，直接反映此种木材的强度等特性，为木材利用和木结构的规范等提供科学数据。本数据库包括物理力学数据和其试验方法（请参看附件1中华人民共和国国家标准GB1927～1943-91《木材物理力学性质试验方法》，附件2木材物理力学各个项目的定义）。

This dataset contains records related to the tangential and radial swelling properties of Pinus yunnanensis, including the record serial number, log serial number, specimen serial number, tangential specimen dimensions during drying, radial specimen dimensions during drying, tangential specimen dimensions during moisture swelling, radial specimen dimensions during moisture swelling, tangential swelling property, radial swelling property, approximate tangential swelling coefficient, approximate radial swelling coefficient, and other relevant entries. All measured physical and mechanical indicators of wood directly reflect the strength and other characteristics of this wood species, providing scientific data for wood utilization and wood structure code formulation. This database includes physical and mechanical property data and their corresponding test methods (please refer to Appendix 1: National Standard of the People's Republic of China GB 1927–1943-91 "Test Methods for Physical and Mechanical Properties of Wood", and Appendix 2: Definitions of each item of wood physical and mechanical properties).