One of a series of small ridges or grooves on the surface or edge of a metal object, such as a thumbscrew, to aid in gripping.
滚花金属物体表面或边缘上的一系列小峰或凹槽，如指旋螺钉，使更容易握紧
spiral part of a screw
（螺钉的）螺旋部分.
screw designed to be turned with the thumb and fingers.
设计成可以绕手指旋转的螺钉。
hexagon spline screw driver
内六角花形螺钉旋具
Clinical Application of Preoperative Spiral CT Measurement to Guide Insertion of Cervical Pedicle Screw Fixation
术前螺旋CT测量指导颈椎椎弓根钉置入的临床应用
propeller,esp of a ship or motor boat
螺旋桨（尤指船的）
insert(a screw or bolt)into such an enlarged hole
将（螺钉或螺栓）旋入埋头孔中.
The Application of Multispiral CT in Metacarpal-phalangeal Fractures Treated with Intramudullary Fixation Using Bioabsorbable PDLLA Mixed Chitosan Pins
多层螺旋CT在可吸收消旋聚乳酸混合壳聚糖髓内钉治疗掌、指骨骨折中的应用
nut with winglike projections for thumb and forefinger leverage in turning.
这种螺钉上面有一个翼状的突起物，利于拇指和其他四指进行抓握和旋转。
and the current running through the wire is causing that screw to spin.
而导线中的电流使得螺钉旋转起来
specializes in manufacturing full range of medium- to high-grade screw-driving tools
专业生产各种中高档螺钉旋具
We must tighten these screws.
我们必须把这些螺钉旋紧。
At each turn the screw goes in further.
每一次旋转都使螺丝钉更向里进。
Effects of micro-implant anchorage on tooth movement in orthodontics by multi-slice spiral CT
多层螺旋CT辅助微螺钉种植支抗的应用研究
Treatment of rotatally and vertically unstable pelvic fracture by fixation of L5S1 pedicle screws combined iliac screws
椎弓根螺钉结合髂骨板间螺钉治疗旋转垂直不稳定型骨盆骨折
To clinch(a bolt, for example).
钉牢（例如螺丝钉）
Relationship between distribution of Oncomelania snails and normalized difference vegetation index in hilly and mountainous areas
山丘地区植被指数与钉螺分布的关系
The crew unscrewed the screws from the sewing-machine and chewed them.
船员们从缝纫机上旋下螺钉并咀嚼它们.