冷杉

Firs, spruces and pines are conifers.

冷杉 、 云杉和松树都是针叶树。

Bolman has studied regional variation in Douglas fir seed yields.

鲍尔曼曾研究过道格拉斯冷杉种子产量地区间的差异。

The growth of spruce and fir needles is determinate.

云杉和冷杉的针叶生长是有限的。

The most common construction woods are Douglas fir, hemlock, spruce, pine, and some cedar.

最常用的木料是道格拉斯冷杉， 铁杉， 云杉， 松木以及其他一些杉木。

A fir is an evergreen tree with needlelike leaves that grows especially in cold areas.

冷杉是一种针叶常绿树，尤在寒冷地区生长。