为便于作者写作时正确使用量和单位 ,本刊拟从本期起以表格的形式陆续刊出有关学科的量和单位 ,供作者参考使用。 (编者 )表 1　空间和时间的量和单位量ＳＩ单位与ＳＩ并用的单位名　称符　号名　称符　号名　称符　号 备　　注[平面 ]角α,β,γ ,θ,φ 弧度ｒａｄ度° 1ｒａ In order to facilitate the author to use the correct amount and units at the time of writing, we intend to publish the quantities and units of the relevant disciplines one after another in tabular form for reference for authors’ reference. (Editor) Table 1 Quantity and unit of space and time Unit of SI unit and SI Unit Symbol Name Symbol Name Symbol Remarks [Plane] Angle α, β, γ, θ, φ Radian rad Degree ° 1ra