cir
cir — 縮寫
1. a written short form of 'circle' or 'circular', used on signs, labels, and diagr
圓形；圓的
圓圈或圓形的書面縮寫
a written short form of 'circle' or 'circular', used on signs, labels, and diagrams to refer to something shaped like a ring or a round area.
The park map showed a dotted cir for the picnic zone near the lake.
公園地圖上用虛線 cir 標出湖邊的野餐區。
written abbreviation on maps and diagrams
Emma drew a small cir around each correct answer before handing in her test.
Emma 在每個正確答案旁邊畫了一個小 cir 才交卷。
The architect labelled the central courtyard as 'cir area' on the floor plan.
建築師在平面圖上將中央庭院標為「cir area」。
Henry used a compass to draw a perfect cir on his geometry homework.
Henry 用圓規在幾何作業上畫了一個完美的 cir。
文法句型
used before a noun (e.g. cir area)
used as a label on diagrams
用法筆記
Found mainly in written notes, diagrams, and technical drawings rather than in full sentences.
2. a written short form of 'circuit', referring to a closed loop through which elec
電路
電流迴路的書面縮寫
a written short form of 'circuit', referring to a closed loop through which electricity can travel, or a diagram showing such a loop.
Rachid checked each cir on the control panel for loose connections before starting the machine.
Rachid 在啟動機器前檢查了控制面板上的每個 cir 接頭是否鬆脫。
technical context: electrical cir board
The physics worksheet asked students to label the main parts of a simple cir diagram.
物理講義要求學生標出簡單 cir 圖的主要部分。
used in academic worksheets and textbooks
Lakshmi replaced the broken cir board inside the old radio and it worked again.
Lakshmi 換掉舊收音機裡損壞的 cir 板後，收音機又能用了。
Omar traced the copper wires on the cir board to find where the signal stopped.
Omar 順著 cir 板上的銅線找出訊號中斷的位置。
文法句型
used in technical writing (e.g. cir board)
used on labels for electrical components
用法筆記
Common in engineering notes, physics class handouts, and technical manuals rather than everyday speech.
3. a written short form of 'circumference', meaning the distance measured all the w
圓周
圓形外圍距離的書面縮寫
a written short form of 'circumference', meaning the distance measured all the way around a circle or any round object.
The label on the metal pipe listed its cir as forty-two centimetres.
金屬管上的標籤標示其 cir 為四十二公分。
used in measurements and specifications
Theo calculated the cir of a circle with a radius of five using the formula.
Theo 用公式計算出半徑為五的圓的 cir。
The wooden wheel had a cir of just over two metres around its outer edge.
木輪外緣的 cir 剛好超過兩公尺。
Nikos measured the cir of the tree trunk with a cloth tape and wrote it down.
Nikos 用布尺量了樹幹的 cir 並記錄下來。
文法句型
used in measurements (e.g. cir = 42 cm)
used in math problems