查询词典 double-duty

double-disk winding：双盘绕组

double dipole || 双偶极子 | double disk winding || 双盘绕组 | double donor || 双重施主

double-disk winding：双盘式绕组(变压器的)

"double-diode ","双二极体,双二极管" | "double-disk winding ","双盘式绕组(变压器的)" | "double-dot display ","双(光)点显示法"

double-disk turbine rotor：双轮盘涡轮转子

double-discharge stabilization ==> 双放电稳定 | double-disk turbine rotor ==> 双轮盘涡轮转子 | double-disk winding ==> 双盘型线圈

double-entry bookkeeping system：复式记帐法

双头扳手 double-ended spanner | 复式记帐法 double-entry bookkeeping system | 双重断错背斜 double-faulted anticline

double-entry accounting system：复式簿记记帐法

double ended wrench ==> 双头扳手 | double entry accounting system ==> 复式簿记记帐法 | double entry book-keeping ==> 复式记帐

double-fold disappearing stair：双折隐梯

double-focusing mass spectrograph ==> 双聚焦质谱仪 | double-fold disappearing stair ==> 双折隐梯 | double-framed generator ==> 双机座型发电机,内外机座型发电机

double-framed generator：双机座型发电机,内外机座型发电机

double-fold disappearing stair ==> 双折隐梯 | double-framed generator ==> 双机座型发电机,内外机座型发电机 | double-frequency coding ==> 双频率编码

double-head wrench：双头扳手

double-head wire stitching machine 双头铁丝订书机 | double-head wrench 双头扳手 | double-headed bolt tension meter 双头螺栓张力计

double-head rail：双头轨

double-head milling machine 双轴铣床 | double-head rail 双头轨 | double-head spring needle knitting machine 汗绒布二用针织机

double-head rail：双头轨条

双头铣床 double head milling machine | 双头轨条 double head rail | 双头型(工具机) double head type

McKenna：麦肯纳(姓氏)

officers n.政府官员, 军官, 警官, 船长vt.指挥 | mckenna 麦肯纳(姓氏) | disappointing adj.使人失望的, 令人失望的

rapid：激流

他们穿过很多美丽的峡谷,绕过无数大瀑布(cataract)、激流(rapid)和瀑布(waterfall). 带着仅有的两艘船,和几乎完全耗尽的给养,剩余的六个人终于到达了维尔京河(Virgin)的摩门教定居点. 这里,是他们一百天探险的终点.