1.
To shape or enlarge(a hole)with a tapered, serrated tool.
凿孔扩大用带齿的尖的工具钻或扩大（孔）
2.
Causing dilatation of the pupils.
瞳孔开大的使瞳孔扩大的
3.
Prolonged, abnormal dilatation of the pupil of the eye caused by disease or a drug.
瞳孔扩散由于疾病或者药物引起的眼睛瞳孔变长、不正常的扩大
4.
Analysis and treatment on pile bore checking collapse accidents of large diameter bored perfusion pile
大口径钻孔扩底灌注桩在孔形检测时的塌孔分析及处理
5.
Discussion on Revamping of The Large Diameter Piercing Head of 10MN Vertical Piercing Mill
10MN立式穿(扩)孔机大直径扩孔头的改造
6.
Point-to-point systems are suitable for hole-machining operations such as drilling, countersinking, counterboring, reaming,Boring, and tapping.
点位系统适用于钻孔、锪孔、扩孔、铰孔、镗孔、攻丝等孔加工。
7.
To form, shape, taper, or enlarge(a hole) with or as if with a reamer.
扩，整用扩孔钻或仿佛是用扩张钻去造出、成形出、整出或扩大（某个孔）
8.
EFEAL Extended Field Elliptical Aperture Lens
可扩展扫描椭圆孔镜头
9.
counterbore with guide
有导柱的平底扩充孔钻
10.
circular perforated air diffuser
环形穿孔空气扩散器
11.
the act of expanding an aperture.
一个孔穴扩大的行为。
12.
Any of various tools used to shape or enlarge holes.
扩孔钻一种用于整造或扩大孔膛的工具
13.
A tapered steel pin for enlarging and aligning holes
打孔器用来扩大或调整孔洞的尖钢针
14.
This machine can be used drilling,core drilling, reaming,boring,tapping, spot-facing and chamfering etc.
可以进行钻孔、扩孔、铰孔、镗孔、攻丝、锪平面，倒角等工作。
15.
Squzing Effect of Cylindrical Cavity Expansion on Unsaturated Soil
沉桩扩孔速度对非饱和土中柱形扩孔挤土效应的影响
16.
A tapered, serrated tool used to shape or enlarge a hole.
手钻用来钻孔，或扩大孔的尖细带齿的工具
17.
INFLUENCE OF TURBULENCE INTENSITY ON COOLING EFFECTIVENESS IN BACK-DIFFUSED HOLE
湍流度对单排圆孔及后扩孔气膜冷却的影响
18.
The pupils of your eyes dilate when you enter a dark room
进入黑暗的房间时,瞳孔就扩大