timber line

基本解释

According to the method of Park, Spine Curves of timber-frame is simplified to be three-line mode Spine Curves.
根据简化的木结构骨架曲线确定了木构架的屈服荷载、峰值荷载、极限荷载和延性指标。
From his hardscrabble boyhood he could hunt, set a trap-line, build with timber and make trails, skills he put to use for the Forest Service to see himself through forestry school.
关于穷困至极的童年，他仍能回忆起当年打绳结、搭木头、开小路的情景，正是依靠这些技能他才顺利通过林务局的林业学院学习。
Study of a very efficient and fast surface roughness of the wood-line detection system for the improvement of timber processing efficiency and product quality are of great significance.
研究一套高效、快速的木材表面粗糙度在线检测系统，对提高木材加工的生产效率和产品质量都具有重要的意义。

the altitudinal or latitudinal limit of normal tree growth &rarrsee also tree line