X-RAY-ray inspection using a lead-free solder paste of voids issue, found that the size and diameter welded hollow in acceptable range.
使用X-RAY射线检测了无铅锡膏的焊接空洞问题，发现焊接空洞的大小和直径都在可以接受范围内。
Screw augmented with bone cement or replaced with thicker, longer screws or special screws (hollow screw and expandable screw hole) can lead to increase in the absolute value of screw stability.
骨水泥加强或更换较粗、较长螺钉或使用特殊螺钉可以使螺钉稳定性绝对值增加。
An assembled hollow grounding equipment including grounding lead-out wire features that it is made up by fastening a lead-out wire to a hollow metal ball.
一种空腹装配式接地装置，由接地引线等组成。其特征是这种装置由引线与一个金属空心球状体紧固构成。
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