1、

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.

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2、

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.

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3、

The high purity of guaiacyl lignin in Douglas fir fiber.

而且花旗松纤维的愈创木基木质素含量较高.

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4、

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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5、

In this picture, the circles represent the Douglas fir, or the nodes,

在这张图片上,圆圈,也就是那些节点代表花旗松,

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6、

Any of several similar or related trees, such as the Douglas fir.

枞木类似或相关树木中的任意一种,例如黄杉。

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7、

Douglas fir of California having cones 4-8 inches long.

加州的道格拉斯冷杉,球果长达四到八英寸。

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8、

I grew 80 replicates of three species: paper birch, Douglas fir, and western red cedar.

那时我种了三种树,一共80棵:有纸皮桦、花旗松和西部红杉。

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9、

The C-13 and C-14 was showing me that paper birch and Douglas fir were in a lively two-way conversation.

碳13和碳14的流向告诉我,纸皮桦和花旗松之间的交流是双向的。

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10、

Douglas fir ( Pseudotsuga menziesii) fiber, kenaf ( Hibiscus cannabinus) core and kenaf bast fiber were che  ̄ mically modified with nitric acid to enhance its adsorption capacity which was increased by 510%, 110% and 40%, respectively.

为了增加花旗松木质纤维和槿麻芯部和韧皮非木质纤维对铜离子的吸附能力,本文提出采用硝酸对这些纤维进行化学改性,使吸附铜离子能力分别增加510%,110%和40%。

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