“弧”造句
2024年06月03日 04:04:45
通常的實(shí)驗(yàn)室光源選用汞
弧燈.
A common laboratory source of light is provided by a mercury arc.
不很精確的射電干涉儀觀測表明,這個(gè)源的角徑約為1.5
弧秒.
Comparatively rudimentary interferometer observations suggested that this source is about 1.5 across.
單個(gè)
弧是不能求長的.
The individual arcs cannot be rectified.