结构可具有第一通孔和第二通孔。
The structure may have a first through-hole and a second through-hole.
导电元件在通孔底部与上电极接触。
A conductive member contacts the upper electrode on a bottom of the via hole.
作为改进，在载料板上开有通孔。
As the improvement, the material loading plate is provided with a through hole.
所述底面粘设有胶纸，以遮盖所述通孔。
The bottom surface is bonded with adhesive paper to cover the through hole.
多少的贯穿孔与引脚比例是最佳的通孔填充？
通孔的正视图。
盘 面上开设通孔，本发明结构简单，可靠性高，实用性强。
根据设置压力和节流孔通径来确定阀门的流容。
中段为泪囊鼻腔造孔术需要凿通的部位。
The middle portion is the surgical area of the nasolacrimal fistulation.
适合三通四通管件侧孔的预胀型加工。
Suitable for side expansion processing of Tee pipe fitting and Cross pipe fitting.
适合三通四通管件侧孔的预胀型加工。
Suitable for side expansion processing of Tee pipe fitting and Cross pipe fitting.
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