查询词典 double-decked

double bottom afterward：尾部双层底

double bond 双键接头 | double bottom afterward 尾部双层底 | double bottom center 双层底中心

double alpaca：双面阿尔帕卡呢

double acid phosphate 双料过磷酸钙 | double alpaca 双面阿尔帕卡呢 | double and twist denim 双色纬纱粗斜纹布

double ambiguousness：两歧性

双栖性:double-dwelling | 两歧性:double ambiguousness | 双功能:double-function

double anastigmat：双正光镜头

雙正方向投影 double azimuthal map projection | 雙正光鏡頭 double anastigmat | 雙重和,航帶誤差 double summation

double-throw disconnecting switch：双投隔离开关

double-pole double throw switch 双刀双掷开关 | double-throw disconnecting switch 双投隔离开关 | double-throw switch 双投开关; 双掷开关

double hexagon end cap wrench：六角螺帽双头扳手

double end "alligator type "wrench 双头鳄口扳手, 双头管扳手 | double hexagon end cap wrench 六角螺帽双头扳手 | double hexagon opening double offset box socket wrench 双头弯脖梅花扳手

switch; double-pole single-throw：双极单投开关

双极双投开关 switch, double-pole double-throw | 双极单投开关 switch, double-pole single-throw | 双投开关 switch, double-throw

double-door drop-bottom bucket：对开底卸料斗

double-disk winding ==> 双盘型线圈 | double-door drop-bottom bucket ==> 对开底卸料斗 | double-double effect ==> 双偶效应

double lever safety valve：双杠杆安全阀

double lens 双透镜 | double lever safety valve 双杠杆安全阀 | double lift double cylinder jacquard 复动式双花筒提花机

double pole mast：双杆轻便井架

double pole double throw 双刀双掷 | double pole mast 双杆轻便井架 | double pole single throw 双刀单掷

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.