入井前，带班队长或司钻要用合适的测量规核实扶正器、扩眼器、钻头，确保尺寸合适。
The Toolpusher or Senior Driller shall verify all stabilisers, reamers and bits will be gauged with appropriate ring gauge to ensure proper size before running in the hole.
瞳仁认证虽然不错，但滴入扩瞳药水就可以轻易地改变瞳仁大小。所以说没有什么技术是绝对可靠的。
"Irises are very good for recognition but you can put in dilation drops which change the iris completely. No technique is infallible, " he said.
分析了圆管压入扩径时内径变化的规律和影响因素。
This paper analyzes the variation principles and influence factors of inside diameter in tube press expansion.
保证特厚壁套管顺利下入和提高盐膏层封固质量的钻后扩眼技术。
Guarantee special thick wall casing to put down successfully and improve reaming after drilling technology to seal quality of salt layer.
扩散法：在喷雾扩香器中滴入10-25滴纯精油。
Diffusion:Place 10 to 25 drops of undiluted essential oil in a Nebulizing Diffuser.
扩散法：在喷雾扩香器中滴入10-25滴纯精油。
Diffusion:Place 10 to 25 drops of undiluted essential oil in a Nebulizing Diffuser.
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