The utility model relates to a bipolar electrocoagulator which belongs to a medical apparatus. A double tube push-pull principaloscillation circuit is composed of a transistor.
本实用新型涉及双极电凝器，属于医疗仪器，由晶体管构成双管推挽主振电路。
2
Objective To analyze the principal mechanics of multi dimension instrument at the traction, flexion, oscillation, and rotation.
目的分析多方位牵引床在牵引、屈曲成角、摆动和旋转时的力学原理。
3
The first principal component of the Southern Oscillation Index (SOI) is used as the intensity of annual SO.