查询词典 double-barrel

Double dotted quaver：复附点八分音符

"复附点四分音符","Double dotted quarter note" | "复附点八分音符","Double dotted quaver" | "复附点八分休止符","Double dotted quaver rest"

double question mark：雙問號

double primary 雙重首位 | double question mark 雙問號 | double restriction 雙重限制

double radial engine：双径向发动机

double pyramid 对顶棱锥 | double radial engine 双径向发动机 | double rate meter 双费制电度表

double radial engine：双排星形发动机

"double rack","双齿条" | "double radial engine","双排星形发动机" | "double rail track circuit","双轨轨道回路"

double recessive：双隐性

double minute chromosome 双微染色体[所携带基因得到扩增的成对额外小染色体] | double recessive 双隐性 | double resonance 双共振

double-articulated reductor：二级链式减速器

double-armature motor 双电枢电动机 | double-articulated reductor 二级链式减速器 | double-axe cleavager 双斧劈木机

double-articulated reductor：链式二级减速器

double-armature motor 双电枢电动机 | double-articulated reductor 链式二级减速器 | double-banking 并靠

double roving：双捻(粗纺织)

双索挖斗 double rope grab | 双捻(粗纺织) double roving | 双列滚珠轴承 double row ball bearing

double roving：双捻

"double rope grab","双索挖斗" | "double roving","双捻" | "double row ball bearing","双列滚珠轴承"

double-edge safety razor blade：双面安全刀片

double-edge prunning saw 双边齿修树锯 | double-edge safety razor blade 双面安全刀片 | double-effect lithiumbromide absorption refrigerating machine 两效型溴化锂吸收式制冷机

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.