成: accomplish; succeed双: two; twin; both; dual构件: member; construction member; ...对柱, 成双构件, 系木: accouplement成双: atwain; couple; duplication; geminate; gemination; geminative; reborn; twin双构架: sandwich frame构件: (结构或机构的组成单元) member; construction member; constructional element; frame member; structural component; structural member; structural parts; component (part); structural unit成双疵: doubling成双的: biparous; didymous; double; geminate; pairwise; twinned成双地: in pairs成双区: double zoning; formation of two zones成双性: binarity罗成双: luo chengshuang使成双: to make double or twofold不成双的: u aired; unpaired成对;形成双晶: twinning成对成双: in pairs even成双搏动: paired beats成双不成对: two much成双成对: in pairs; female and male成双串联: twin-tandem成双的;两倍: doub成双地, 成对地: in pairs成双夺获: paired captures成双结对: be in pairs; form a couple