Common Grade of Lumber - Grades at least 66.66% clear in cuttings 3" wide by 3' long or 4" wide by 4' long minimum.
符合美国硬木协会要求的板材等级：普通1级，至少66。66%表面干净，3英寸宽以上，3英尺长以上；或4英寸宽以上，4英尺长以上。
Although considerable research has been completed on utilization of low-grade hardwood lumber, such research needs to continue.
尽管对低级别硬木应用的研究已经完成了不少，但这样的研究还得继续。
So the properties of plastic molding for lower strength grade lumber can be improved by reducing the strain rate.
硬化强度等级低的板材可以通过降低变形速率改善塑性成型性能。
Lumber cutting length in the lumber grading criteria had the largest effect on grade yields and monetary values of the aspen logs.
木料等级评定系统中木料切割长度对于白杨圆木的等级产量及货币值具有最大的影响。
Lumber cutting length in the lumber grading criteria had the largest effect on grade yields and monetary values of the aspen logs.
木料等级评定系统中木料切割长度对于白杨圆木的等级产量及货币值具有最大的影响。
应用推荐