测试研究了有代表性的14种不同材质、不同截面几何形状及尺寸大小的纤维材料；
The sound-absorbing coefficients of 14 typical fiber Materials with different geometrical cros-section forms and sizes are measured and studied.
以这种方法这本书给一个领域的代表性的横截面。
In this way this book gives a representative cross-section of the field.
对海口市和平桥改造前，选择有代表性的部位进行动静载试验，检测了桥梁最不利截面的变形和受力状态。
The on-site static and dynamic experiment and theoretical analysis of the bridge should be integrated with eac.
对海口市和平桥改造前，选择有代表性的部位进行动静载试验，检测了桥梁最不利截面的变形和受力状态。
The on-site static and dynamic experiment and theoretical analysis of the bridge should be integrated with eac.
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