birch camphor

birch camphor的基本解释

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[化] 桦木脑

与birch camphor相关的网络例句 [注：此内容来源于网络，仅供参考]

The main reason why quarter-sawn board of Birch had smaller dry compressing shear strength than flat-sawn board of Birch in normal conditions was that Birch had different shear strength to the grain between quarter-sawn board and flat-sawn board. Meanwhile xylary rays in flat-sawn board were transversely cut and left a lot of pores in the flat-sawn board, so adhesive can enter these pores and turn into adhesive nail. While these pores provided a kind of tunnel for water, so cause this phenomenon that wet compressing shear strength of flat-sawn board of Birch was smaller than that of quarter-sawn board of Birch. The possible reason why quarter-sawn board of Oak had greater dry compressing shear strength than flat-sawn board of Oak in normal conditions was that ratio of springwood on quarter-sawn board and flat-sawn board was different.

造成柞木径切板的常态压缩剪切强度比弦切板的常态压缩剪切强度大的主要原因是，在径切板和弦切板上早材胶接的比例不同，径切板的胶合强度试件上早材胶接的比例相对少，而弦切板的胶合强度试件上早材胶接的比例比径切板的胶合强度试件上早材胶接的比例相对大，由于早晚材胶接过程中强度决定于早材，这部分胶接强度比较低，这就使得柞木径切板的常态压缩剪切强度比弦切板的大；同时在柞木弦径面胶接过程中由于实际胶接面积的不同也能造成弦径面上API胶粘剂与之形成的化学键的数量不同，这也是造成柞木径切板的常态压缩剪切强度比弦切板的大的原因之一。

Results The average concentration of camphor in indoor air was 1.00mg/L inarchives applying synthetic camphor, 0.74 mg/m3 in archives applying commercialized mycocide (the main compo-nents were synthetic camphor and pyrethrin ), and 0.14 mg/m3, applying natural camphor.

结果使用合成樟脑的档案库，樟脑平均浓度为1.00mg／m3；使用商品防霉剂的档案库，樟脑平均浓度为0.74 mg／m3；使用天然樟脑的档案库，空气中樟脑浓度为0.14 mg／m3。

Forest area throughout the area account for about 52% of Taipei's Tai Ping Shan, Pa-hsien-shan of Taichung, Chiayi and Alishan is the well-known of the three major forest areas, timber reserves of up to 326,000,000 cubic meters, in recent type of trees 4000 kinds, particularly in the areas of Taiwan fir, cypress, camphor, Nan valuable timber, such as world-famous, camphor tree extract more tops the world camphor and camphor oil production accounts for about 70 percent of the world's total.

台湾森林面积约占全境面积的52％，台北的太平山、台中的八仙山和嘉义的阿里山是著名的三大林区，木材储量多达3.26亿立方米，树木种类近4000种，其中尤以台湾杉、红桧、樟、楠等名贵木材闻名于世，樟树提取物更居世界之冠，樟脑和樟油产量约占世界总量的70％。

与birch camphor相关的网络解释 [注：此内容来源于网络，仅供参考]

birch camphor：桦脑

双辐射状对称 biradial symmetry | 桦脑 birch camphor | 桦树;白桦 birch; Betula

birch camphor：桦木脑

birational || 双有理的 | birch camphor || 桦木脑 | birch fungus || 桦滴孔菌