I ask Mawu to drill a hole on the iron with his sharp teeth, make a clear break of semicircle and raise the cover of the can.
我便教玛乌，先用尖牙扎穿铁皮，然后顺势划出一个半圆，这样就能将盒盖掀起了。
2
Patients were generally anxious about dental drill, sharp doctors, injector, doctor s attitude and previous dental consulting environment. Conclusion: Only by considering all the factors rel...
患者对牙钻、检查用的尖锐器械、注射器、牙医态度、就诊环境等均有不同程度的焦虑。
3
A clamping center Angle and the sharp Angle center of the clamped drill are positioned on the same shaft center, and the gauges are provided with indication graduations.