dioptra

听听怎么读

英 [da?'?ptr?]

美 [da?'?ptr?]

是什么意思

测量高度及角度用的一种光学装置；

英英释义

Dioptra

A dioptra () is a classical astronomical and surveying instrument, dating from the 3rd century BCE. The dioptra was a sighting tube or, alternatively, a rod with a sight at both ends, attached to a stand.

以上来源于:Wikipedia

学习怎么用

权威例句

INSTRUMENTACION PARA LA TOPOGRAFIA Y SU
“动姐”必须“动人”
Dioptra
Dioptra
Heron's Dioptra 35 and Analemma Methods: An Astronomical Determination of the Distance between Two Cities
Heron's Dioptra
When did Michael Psellus die? The evidence of the Dioptra : Byzantinische Zeitschrift
Uno strumento astronomico descritto nel corpus Archimedeo: la dioptra di Archimede.
A Detail of Heron's Dioptra
The scribes ancient copies of Dioptra by Philip Solitarius from Kirillo-Belozersky Monastery

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