chinese fir
常見例句
- The characteristics of transverse fracture of Chinese Fir from macro and microcosmic, and the mechanism of strong toughness of wood was studied in this paper.
以杉木為研究對象從宏觀和微觀上研究了木材橫紋斷裂的性質(zhì),并闡述了木材的強韌機理。 - There was significant difference of tangential shrinkage at different heights for Chinese Fir and I-72 poplar, while no significant difference for radial shrinkage.
高度位置的不同對杉木和I-72楊木的弦向干縮均有顯著影響,而對徑向干縮則無顯著影響; - In this paper, 12 years old Chinese Fir clones were studied on the genetic variation of growth properties, basic density and tracheid morphological characteristics.
本文綜合研究了12年生杉木無性系試驗林的生長性狀、基本密度和管胞形態(tài)的遺傳變異規(guī)律。 返回 chinese fir