Rod material specification regarding to the diametre of round rod. Squarerod and multi-shaped rod regarding to inside diametre.
棒材规格指圆棒直径、如方棒及多角形棒指内切圆直径。
2
By adopting squarerod support instead of the round rod support, the shear action between the pipe bundle and support structure can be reduced at a high degree.
把杆式支撑结构中的圆杆支撑改为方杆支撑，很好地减小管束与支撑结构间的剪切作用。
3
Its model involves a two-mirrored system that directs sunlight down an optical rod onto a small (1 square centimeter) photovoltaic cell.