The production performance and woolquality of all individuals were measured in next spring under the same management and feeding conditions.
相同条件下饲养管理到第二年春季测定生产性能和羊毛品质。
2
But the quality of the rock woolquality can vary widely, heat preservation function good density low, the tensile strength is also low, durability is poorer.
但岩棉的质量优劣相差很大，保温机能好的密度低，其抗拉强度也低，耐久性比较差。
3
A truck driver then carried the wool to the city where a wool classer took a closer look and chose its grade and quality for the market.