projection是什么意思（projection的用法）

大家好，知识小编来为大家讲解下。projection是什么意思，projection的用法很多人还不知道，现在让我们一起来看看吧！

一、projection是什么意思

1、projection 预测，投影，投影图

2、来自project,投掷，投射，-ion,名词后缀。

二、projection的用法

1、projection (n.)

2、late 15c., in alchemy, "transmutation by casting a powder on molten metal; 1550s in the cartographical sense "drawing of a map or chart according to scale," from Middle French projection, from Latin proiectionem (nominative proiectio), from past participle stem of proicere (see project (n.)). From 1590s as "action of projecting."

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