Bamboo strip unfolding rate of onefourth circumference is 99% and that of one-third is 52% (the top of bamboo culm being 8%,the middle 75% and the bottom 72% ), but bamboo strips with 5/12 circumference are allbroken.
采用同时提高毛竹含水率和温度的方法，对四年生毛竹进行了展平试验。
The principle of work, spreading effect of the varibow roll are discussed.
可调弯辊对带材具有展平作用。
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