An engineer's view of world languages. (°_°)

回答: 軸心 axis 軸線 differs from axle 軸走馬讀人2013-07-13 06:55:08

When I was in college, we used to learn mechanical drewings,then went to the factory to see machines being operated.

Have a good weekend.

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We visited factories, a village, 榮寶齋 and shows,etc. -走馬讀人- 給 走馬讀人 發送悄悄話 走馬讀人 的博客首頁 (28 bytes) () 07/13/2013 postreply 07:46:18

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