桑蚕茧在缫丝过程中经索绪、理绪取下一些乱丝头，用这种乱丝加工成的绢纺原料称为长吐。
本论文的重要结论如下：1 . V型煮茧机能降低缫折，降低内层落绪，降低长吐率，达到减少消耗的目的。
Important conclusions of this paper are following 1. The V type cocoon boiling machine could lower the depletion of filature, and attain the purpose of reducing the depletion.
他不止一次清好喉咙，颤抖着深吸一口长气，准备在再度吐气的同时，把他灵魂深处的阴暗秘密装上，一吐为快。
More than once, he had cleared his throat, and drawn in the long, deep, and tremulous breath, which, when sent forth again, would come burdened with the black secret of his soul.
春天，树木吐芽长叶。
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