[求譯] 請教這段文字的翻譯

[jasmineapple (席得)]

The square plates of a 9000pF capacitor measure 90mm by 90mm and are separated
 by a dielectric which is 0.29mm thick.
想請教90mm by 90mm是指邊長乘上邊長的意思嗎？ 謝謝

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推 myenglish23: 是~解釋如下。If something measures a particular
→ myenglish23: length, width, or amount, that is its size or in
→ myenglish23: tensity, expressed in numbers.; (syn.)齩eYou use
→ myenglish23:  by to talk about measurements of area. For exam
→ myenglish23: ple, if a room is twenty feet by fourteen feet,
→ myenglish23: it measures twenty feet in one direction and fou
→ myenglish23: rteen feet in the other direction.以上解釋從Coll
→ myenglish23: in 英英字典來
→ jasmineapple: 謝謝解答