Officials have skirmished over foreign washing machines and Canadian softwood lumber imports.

在外国洗衣机和加拿大软木进口问题上发生了冲突。

China has become an important market for Canadian fuels and softwood lumber.

中国已成为了加拿大燃料和软木材市场。

A softwood window frame provides nearly 400 times as much insulation as a plain steel one of the same thickness and over a thousand times as much as an aluminium equivalent.

软木窗框绝缘性能几乎是同等厚度普通钢400倍，是同等厚度铝1000倍以上。