angular diameter 中文意思是什麼
angular diameter
解釋
角直徑-
The celestial globe invented by zhang heng, chinese scientist of the east han dynasty ( 25 a. d. - 220 a. d. ), was the first of its kind in the world. it determined that the angular diameter of both the sun and the moon was 0. 5.
中國東漢科學家張衡發明的天球儀是世界上最早的天球儀。 -
Angular diameter of the retro - reflecting device
回復反射裝置的角直徑 -
Wafangdian electric bearing production co., ltd. boasts sophisticated bearing processing equipments, the powerful technical force, excellent production equipments, advanced technological level and complete detection means and is capable of independently undertaking the manufacture of deep grove ball bearing, self - aligning ball bearing, cylindrical roller bearing, ? self - aligning roller bearing, angular - contact ball bearing, tapered roller bearing, thrust ball bearing and thrust roller bearing as well as non - standard bearings and revolving supporting bearing, with the production scope ranging from the internal diameter of 50mm to the external one 3000mm and the precision class ranging from p0p5
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