The cross-section test and dye&pry test are adopted to study the failure mechanism of CSP lead-free solder interconnection.
采用剖样实验和染色实验对无铅焊料微互连的失效机理进行分析。
The method using interference rib is introduced, which simulate the wind vibration of round cross-section rod via the test, and gain some effect to reduce the vibration.
提出利用抗扰条肋抑制此类风致振动的方法，并通过试验方法模拟了圆截面杆件的风致振动，取得一定的振动抑制效果。
Freezing and thawing test shows that the figuration and cross-section of cement-based materials (paste, mortar and concrete) are different after they damage because of their different pore structures.
冻融循环试验表明，由于净浆、砂浆和混凝土这三种水泥基材料孔结构的不同，使得其破坏时的外观和断面形状各不相同。
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