PWB samples were subjected to the solder float test per MIL-P-55110 and then the PTHs were cross-sectioned.
印制板试样必须经过MIL—P—55110标准浮焊试验，然后对金属化孔进行剖视。
Nodular defects, which are in critical state of damage, are cross-sectioned by focusing on the ion beam and by imaging using a field emission scanning electron microscope.
采用聚焦离子束和场发射扫描电镜对处于临界破坏状态的节瘤缺陷做剖面分析和观察。
This will simplify the designing of trapezoidal-cross-sectioned rib waveguides and increase the precision of practical device.
这一结论有利于简化梯形截面脊波导的设计，提高实际器件的精度。
In cross-sectioned root form 2 middle bark layer next Internal bark layer especial structure of regularly array;
根横切面上形成了在紧靠内皮层的两层中皮层细胞有规则整齐排列成两环的特殊结构；
In cross-sectioned root form 2 middle bark layer next Internal bark layer especial structure of regularly array;
根横切面上形成了在紧靠内皮层的两层中皮层细胞有规则整齐排列成两环的特殊结构；
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