Methods: Electron microscopy, reticulum fiber stain and ELISA test were used to observe the pathologic pro - cess of pulmonary fibrosis and to determine the change of collagen content.
方法：应用电子显微镜，网状纤维染色和ELISA方法检测大鼠肺纤维化的病理过程和胶原含量的改变。
The residual strains of five kinds of steel fiber concrete in each loading and unloading cycle are decreased as the steel fiber content are increased in the whole test process.
整个加卸载试验过程中，五种混凝土在各次循环中的残余应变随钢纤维含量的增加而降低。
The test manifests adding a certain content of fiber in the mortar can obviously improve the tear and compression resistance, antipenetration and shrinkage.
试验证明，在普通的水泥砂浆中加入一定量的纤维能显著提高砂浆的抗裂抗渗，降低砂浆收缩率，提高抗压抗折强度等。
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