底部纤维;
The test results show that, the flexural fatigue strength of polyacrylonitrile fiber reinforced concrete beams with bottom layer steel fiber is larger than the plain concrete 15.7%;
研究证明:底层撒布较长钢纤维的聚丙烯腈纤维混凝土梁的弯曲疲劳强度比素混凝土提高15.7%;
At the end of membrane-hanging, a thick layer of attachment sludge has grown up around the fiber-ball string bodies and the sludge flocs in suspended phase at the bottom were big and fluffy, while the effluent water was clear and transparent.
挂膜结束时,纤维球串体周围生长了一层厚厚的附着层污泥,底部悬浮相污泥絮体大且蓬松,出水澄清透明;
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