1·These lumberyards do not provide any technical support or engineered drawings.
这些贮木场并不提供技术支援或工程绘图。
2·The national chains get some volume with standard size Windows, but lumberyards are the most common source of supply for contractors in Timothy's area.
国内供应链可提供相当数量之标准尺寸窗户，但贮木场为在提摩太地区承包商最普遍之供应来源。