| Kanji 漢字 / Romaji 音韻 | Kana / Hiragana / Phonetic | Definition |
| CASE | しーえーえすいー | computer aided software engineering (19) |
| CASE | shi ^ e ^ esui ^ |
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| CAE | しーえーいー | computer aided engineering (17) |
| CAE | shi ^ e ^ i ^ |
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| CAT | しーえーてぃー | computer aided testing (19) |
| CAT | shi ^ e ^ tei ^ |
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| CATV | しーえーてぃーぶぃ | cable television (19) |
| CATV | shi ^ e ^ tei ^ bui |
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| CFRエンジン | しーえふあーるえんじん | cooperative fuel research engine (11) / CFR engine (11) |
| CFR enjin | shi ^ efua ^ ruenjin |
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| CFRP | しーえふあーるぴー | carbon fiber reinforced plastic (8) |
| CFRP | shi ^ efua ^ rupi ^ |
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| CFD | しーえふでぃー | computational fluid dynamics (11) |
| CFD | shi ^ efudei ^ |
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| CM法 | しーえむほう | constant moment method (7) |
| CM hou | shi ^ emuhou |
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| CMC | しーえむしー | ceramic matrix composite (5) |
| CMC | shi ^ emushi ^ |
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| CNC | しーえぬしー | computerized numerical control (19) |
| CNC | shi ^ enushi ^ |
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| CN試験片 | しーえぬしけんへん | chevron notch specimen (7) |
| CN shiken hen | shi ^ enushikenhen |
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| CLV | しーえるぶい | constant linear velocity (15) |
| CLV | shi ^ erubui |
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| CLデータ | しーえるでーた | cutter location data (19) |
| CL de^ta | shi ^ erude ^ ta |
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| CLD | しーえるでぃー | chemi-luminescence detector (11) |
| CLD | shi ^ erudei ^ |
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| CLA | しーえるえー | chemi-luminescence analyzer (11) |
| CLA | shi ^ erue ^ |
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| CSF法 | しーえすえふほう | control surface flaw method (7) |
| CSF hou | shi ^ esuefuhou |
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| CSS | しーえすえす | CSS (15) |
| CSS | shi ^ esuesu |
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| CSG表現 | しーえすじーひょうげん | CSG (constructive solid geometry) (1) |
| CSG hyougen | shi ^ esuji ^ hyougen |
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| C言語 | しーげんご | C language (1) |
| C gengo | shi ^ gengo |
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| CG | しーじー | computer graphics (1) |
| CG | shi ^ ji ^ |
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| CGT | しーじーてぃー | ceramic gas turbine (11) |
| CGT | shi ^ ji ^ tei ^ |
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| C系砥粒 | しーけいとりゅう | silicon carbide grain (18) |
| C kei to tsubu | shi ^ keitoryuu |
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| シーケンサ | しーけんさ | sequencer (19) |
| shi^kensa | shi ^ kensa |
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| シーケンシャルファイル | しーけんしゃるふぁいる | sequential file (19) |
| shi^kensharufairu | shi ^ kensharufairu |
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| シーケンス番号 | しーけんすばんごう | sequence number (19) |
| shi^kensu bangou | shi ^ kensubangou |
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| シーケンス弁 | しーけんすべん | sequence valve (9) |
| shi^kensu ben | shi ^ kensuben |
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| シーケンスロボット | しーけんすろぼっと | sequenced robot (19) |
| shi^kensurobotto | shi ^ kensurobotto |
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| シーケンス制御 | しーけんすせいぎょ | sequence control (many) |
| shi^kensu seigyo | shi ^ kensuseigyo |
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| シーク | しーく | seek (15) |
| shi^ku | shi ^ ku |
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| シーク時間 | しーくじかん | seek time (15) |
| shi^ku jikan | shi ^ kujikan |
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| シーマージン | しーまーじん | sea margin (20) |
| shi^ma^jin | shi ^ ma ^ jin |
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| シーミング | しーみんぐ | seaming (8) |
| shi^mingu | shi ^ mingu |
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| シーム溶接 | しーむようせつ | seam welding (8) |
| shi^mu yousetsu | shi ^ muyousetsu |
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| COBOL | しーおーびーおーえる | common business oriented language (19) |
| COBOL | shi ^ o ^ bi ^ o ^ eru |
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| COD | しーおーでぃー | chemical oxygen demand (3) |
| COD | shi ^ o ^ dei ^ |
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| COD試験 | しーおーでぃーしけん | COD test (7) |
| COD shiken | shi ^ o ^ dei ^ shiken |
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| COM | しーおーえむ | coal-oil mixture (10) |
| COM | shi ^ o ^ emu |
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| COE | しーおーいー | center of excellence (6) |
| COE | shi ^ o ^ i ^ |
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| COP | しーおーぴー | coefficient of performance (10) |
| COP | shi ^ o ^ pi ^ |
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| CPM | しーぴーえむ | critical path method (17) |
| CPM | shi ^ pi ^ emu |
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