【单选题】【消耗次数：1】
工序尺寸链的解算中，若某环的尺寸变动引起封闭环尺寸的反向变动，则称该环为（）。
①
环
②
减环
③
增环
④
封闭环
参考答案：
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相关题目
【单选题】
对于尺寸链封闭环的确定，下列论述正确的有（）
①
A．图样中未注尺寸的那一环
②
B．在装配过程中最后形成的一环
③
C．在零件加工过程中最后形成的一环
④
D．尺寸链中需要求解的那一环。
随机题目
【单选题】
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①
<imgsrc="http://121.251.253.213/doc/a@145B3AC53465C70D90DE0185C036A490.png/download?time=636002476212168852&token=AEBC4369C96DE92EF1B20DF70052F9C3&filename=png"data-url="doc/a@145B3AC53465C70D90DE0185C036A490.png"data-preview_url_ueditor="doc/a@145B3AC53465C70D90DE0185C036A490.png"/>
②
<imgsrc="http://121.251.253.213/doc/a@DBF4517EDFBD9FBFD42E1AEFD412897C.png/download?time=636002476292508993&token=DD1511B0D3AE73B8F5BF2C869A8F52F5&filename=png"data-url="doc/a@DBF4517EDFBD9FBFD42E1AEFD412897C.png"data-preview_url_ueditor="doc/a@DBF4517EDFBD9FBFD42E1AEFD412897C.png"/>
③
<imgsrc="http://121.251.253.213/doc/a@FD0B6F2E4606304A52FAF334BB5BC8E9.png/download?time=636002476370665131&token=D503206A410A9A758039EA014BC6A48F&filename=png"data-url="doc/a@FD0B6F2E4606304A52FAF334BB5BC8E9.png"data-preview_url_ueditor="doc/a@FD0B6F2E4606304A52FAF334BB5BC8E9.png"/>
④
<imgsrc="http://121.251.253.213/doc/a@1AAC94D22983B7C08A700950B6103C74.png/download?time=636002476446481264&token=7B31FF13B112C110C09DD7C42D18DC68&filename=png"data-url="doc/a@1AAC94D22983B7C08A700950B6103C74.png"data-preview_url_ueditor="doc/a@1AAC94D22983B7C08A700950B6103C74.png"/>
【单选题】
<imgsrc="http://121.251.253.213/doc/a@F4481B790DEA53F8BA784340D9E7DBD5.png/download?time=636002471591908737&token=C9861E965BE2A3F88E19FDB83A015858&filename=png"data-url="doc/a@F4481B790DEA53F8BA784340D9E7DBD5.png"data-preview_url_ueditor="doc/a@F4481B790DEA53F8BA784340D9E7DBD5.png"/>
①
<imgsrc="http://121.251.253.213/doc/a@49AD58B83D74079A52B9BC9D580A57F0.png/download?time=636002471674588883&token=5D0CC3E9D5071B5B99D33E11198168CF&filename=png"data-url="doc/a@49AD58B83D74079A52B9BC9D580A57F0.png"data-preview_url_ueditor="doc/a@49AD58B83D74079A52B9BC9D580A57F0.png"/>
②
<imgsrc="http://121.251.253.213/doc/a@7EFC8C78A5255FC23D2408BA7460C4B1.png/download?time=636002471771153052&token=C4DD6005C7D6AB83CC98365C90E96F7F&filename=png"data-url="doc/a@7EFC8C78A5255FC23D2408BA7460C4B1.png"data-preview_url_ueditor="doc/a@7EFC8C78A5255FC23D2408BA7460C4B1.png"/>
③
<imgsrc="http://121.251.253.213/doc/a@08C1F1E9561C37C7D96249E0FF936B6A.png/download?time=636002471855705201&token=48F4A7689592EAC7AC51D4A9DC7C61E9&filename=png"data-url="doc/a@08C1F1E9561C37C7D96249E0FF936B6A.png"data-preview_url_ueditor="doc/a@08C1F1E9561C37C7D96249E0FF936B6A.png"/>
④
<imgsrc="http://121.251.253.213/doc/a@33BDC224DA6CE3012ADE43A9FC77D6D6.png/download?time=636002471973797408&token=349E4644A1E20C4BDE3E18EC7BF17375&filename=png"data-url="doc/a@33BDC224DA6CE3012ADE43A9FC77D6D6.png"data-preview_url_ueditor="doc/a@33BDC224DA6CE3012ADE43A9FC77D6D6.png"/>