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。
Finally, analysis of test results on the basis of the derived CFRP reinforced concrete two-way eccentric cross-section bearing capacity of columns is calculated.
最后在试验结果分析的基础上,推导了碳纤维布加固钢筋混凝土双向大偏心受压柱的正截面承载力计算公式。
The test shows that the errors are less than those from measuring at cross section of outlet.
试验结果表明,此装置得出的流量值比原在进气管道出口截面处得出的流量值误差小。
In the microhardness survey test, a pyramid-shaped diamond is impressed into 23 or more points across the face of a weld sample cross section.
在显微硬度测试中,在焊缝试样横截面上用锥形金刚石压入23或更多的点。
The article also describes the generalized model test for lateral distribution of sedimentation in cross section of wide or narrow valley.
然后对宽、狭谷断面的淤积横向分布进行了概化模型试验;
Methods The exploration of DM and other associated diseases in 3717 Chongqing citizens over 20 years old was done by oral glucose tolerance test (OGTT) in a cross-section study.
方法采用横断面调查方法对重庆市局部地区3717例2 0岁以上自然人群进行口服葡萄糖耐量试验(OGTT)等调查。
The stealth of the production f-35-verified in radar cross section tests performed on classified western test ranges-is better than that of any aircraft other than the F-22.
生产型的F - 35在美国西部的某个秘密试验场进行的RCS实测表明,其隐身性比除f - 22外的任何飞机都好。
The stealth of the production f-35-verified in radar cross section tests performed on classified western test ranges-is better than that of any aircraft other than the F-22.
生产型的F - 35在美国西部的某个秘密试验场进行的RCS实测表明,其隐身性比除f - 22外的任何飞机都好。
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