1·A plug had been inserted in the drill hole.
那个钻孔里已经塞上了塞子。
—— 《柯林斯英汉双解大词典》
2·The drill hole size selected should provide sufficient representative sample material for analysis and reference.
该钻孔尺寸选定应提供足够有代表性的样本，剖析材料和参考。
3·Recently, a common method is fixing direction of drill hole, not considering anisotropy of rock body.
目前，通用的设计方法是不考虑岩体的各向异性而采用固定的钻孔方向。
4·Notch and mark drill hole for dart point.
打刀眼并标出省端点的钻孔位置。
5·Gathers and analyses the primitive drill hole data of the interpolation algorithm.
采集与分析插值算法的原始钻孔数据。