Douglas fir 释义 [林] 花旗松;绿枞 例句 1·Each unit is constructed from a ribbed timber frame set upon Douglas fir stilts and then clad in English chestnut shingles. 每个单元均由肋木框架构筑而成,框架固定在花旗松高跷上,然后覆以英国栗木。 2·Strong durable timber of a douglas fir . 坚韧耐用的花旗松木料。 3·How were paper birch and Douglas fir communicating? 纸皮桦和花旗松到底是怎么交流的呢?
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