One hypothesis is that the yellow cedar decline may be caused by insect parasites, specifically the cedar bark beetle.
其中一个假说认为黄杉数量下降是由以衫皮甲虫为代表的寄生害虫导致。
For example, the bark and leaves of the yellow cedars are concentrated with powerful chemicals that are poisonous to insects.
比如，黄杉的树皮和叶子上聚集着一些对于昆虫来说有毒的的强力化学物质。
On the pollard willows the long wands are yellow-ruddy in the passing gleam of sunshine, the first colour of spring appears in their bark.
截去树梢的杨树长长的嫩枝在一闪一闪的阳光里呈现出橘红色，春天最初的色彩出现在它们的树皮上。
Deciduous shrub of eastern North America having tough flexible branches and pliable bark and small yellow flowers.
北美洲东部的一种落叶灌木，具有强韧的枝和柔韧的树皮，花小、黄色。
A yellow, powdered crystalline compound, C5H15O2 (OH) 5, synthesized or occurring as a glycoside in the rind and bark of numerous plants, and used medicinally to treat abnormal capillary fragility.
槲皮苷，栎皮酮一种黄色粉末状的晶体化合物c5h 15o2 (oh)5，人工合成或以糖苷存在于许多植物的果皮及树皮中，在医药中用来治疗不正常的毛细血管脆弱。
Known for tolerating poor soils and cold climates, aspens flash yellow against their white bark in an unmistakable sign of coming winter.
已知的为容忍土地贫瘠和气候寒冷，白杨树闪光黄色对它们的白色树皮在即将来临的冬天的一个明确无误的符号。
Composted bagasse and pine bark were mixed with yellow soil and perlite to make up light medium for eucalyptus cuttings.
本文研究了以甘蔗渣和树皮等，结合黄心土和珍珠岩作为桉树扦插的轻型基质。
Composted bagasse and pine bark were mixed with yellow soil and perlite to make up light medium for eucalyptus cuttings.
本文研究了以甘蔗渣和树皮等，结合黄心土和珍珠岩作为桉树扦插的轻型基质。
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