聚合材料的机械性能一般表现为低强度和高韧性。
The mechanical properties of polymers generally include low strength and high toughness.
在国内，一个性能一般的相机都在2000元左右。
At home, a camera with general performance is about 2000 yuan.
MBE模型的基音周期搜索算法存在着运算量大，抗噪性能一般等缺点。
The algorithm for pitch period search with MBE model is complex in calculation and low flexible.
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