2) borehole deviation
钻孔偏斜
1.
According to the quality problems encountered in construction process, such as hole collapsing, plugging and borehole deviation their causing reasons are analyzed; at the same time corresponding quality control measures are proposed.
介绍了嵌岩钻孔灌注桩的作用原理及主要特点,针对施工过程中塌孔、钻孔偏斜、导管堵塞等常见的质量问题,对其原因作了分析,提出相应的质量控制措施。
3) pilot hole deflection
导孔偏斜
1.
Study on basic factors and calculation mode of pilot hole deflection in raise boring;
反井钻井导孔偏斜的基本因素及其计算模型的研究
6) inclination correction by slant hole
斜孔纠偏
补充资料：第二孔(继发孔)型缺损
第二孔(继发孔)型缺损
ostium secondary defect
是心房间隔在形成上发生障碍，一般缺损较大，多在卵圆孔附近称第二孔(继发孔)型缺损。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条