The strain of bridge structure is main performance to estimate bridge health.
桥梁结构的应变状况是评价桥梁健康状况的主要性能指标。
MgO powders, with small particle size, loose structure and high strain energy, have high activity.
晶粒细小，结构疏松，应变能大的氧化镁粉末具有较高的活性。
MgO powders, with small particle size, loose structure and high strain energy, have high activity.
晶粒细小，结构疏松，应变能大的氧化镁粉末具有较高的活性。
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