latewood percent 第1页

STUDY ON RELATIONSHIP BETWEEN SOUND VIBRATION PARAMETERS AND GROWTH RING WIDTH AND LATEWOOD PERCENTAGE OF PICEA GENERA WOOD Variation in Wood Bending Properties of Exotic Loblolly Pine Provenances for Building Lumber and Their Relationships to Tree Age, Tree Growth and Wood Density PRELIMINARY STUDY ON WOOD PROPERTIES VARIATION OF LOBLOLLY PINE