protractor

n.

量角器，分度规；

复数：protractors

1. Use your protractor to construct an equilateral triangle.
   用量角器作一个等边三角形。
2. This compass serves as a protractor.
   这个罗盘可用作分度规。

Protractor
Protractor:a fast and accurate gesture recognizer
Lid protractor force generation in Graves' eye disease.
$N-protractor: a fast and accurate multistroke recognizer
A mini-maxillary protractor for Class III correction.
Serotonergic and peptidergic modulation of the buccal mass protractor muscle (I2) in aplysia.
Evaluation of the modified maxillary protractor applied to Class III malocclusion with retruded maxilla in early mixed dentition.
Cranial Kinesis in Dinosaurs: Intracranial Joints, Protractor Muscles, and Their Significance for Cranial Evolution and Function in ...
Comparison of orthodontic and orthopedic effects of a modified maxillary protractor between deciduous and early mixed dentitions
Follow-up of patients with essential blepharospasm who underwent eyelid protractor myectomy at the Mayo Clinic from 1980 through 1995