The dusts-removing abilities of four types of evergreen trees are ranked as: spruce, needle juniper, Sabina chinensis, and pitch pine.
四种常绿乔木的除尘能力等级排列为：云杉，针刺杜松，圆柏和柏油松。
They were told to brew up a foul mixture of chicken and goose grease, pine, rosin, pitch and turpentine in an earthenware pot.
手册教导他们，在陶罐中，调配一种混合了鸡和鹅的脂肪、松木、松香、树脂以及松节油的茶。
In the course of the summer I had discovered a raft of pitch pine logs with the bark on, pinned together by the Irish when the railroad was built.
夏天里，我曾经发现了一个苍松的木筏，是造铁路的时候，爱尔兰人钉起来的，树皮都还保留着。
The main components which can cause pitch trouble in the process of paper making with Masson pine TMP was simulated by using fatty acid, resin acid and oleic triglyceride as model materials.
以脂肪酸、树脂酸、三油酸甘油脂为模型物，模拟了马尾松TMP造纸过程中造成树脂障碍的主要成分。
These hemlocks whispered over his head, these hickory logs were his fuel, and these pitch pine roots kindled his fire;
铁杉在樵夫的头上耳语，山核桃是他的燃料，还有松脂的松根供他点火；
The sulphur-like pollen of the pitch pine soon covered the pond and the stones and rotten wood along the shore, so that you could have collected a barrelful .
苍松的硫磺色的花粉不久就铺满了湖面和圆石以及沿湖的那些腐朽了的树木，因此你可以用桶来满满地装上一桶。
The sulphur-like pollen of the pitch pine soon covered the pond and the stones and rotten wood along the shore, so that you could have collected a barrelful .
苍松的硫磺色的花粉不久就铺满了湖面和圆石以及沿湖的那些腐朽了的树木，因此你可以用桶来满满地装上一桶。
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