查询词典 double-duty

double co er-wire cro talk su re ion filter：双铜线串音抑制滤波器

double cooling and heating back counter reshaping machine 双冷热式鞋后跟整形机 | double co er-wire cro talk su re ion filter 双铜线串音抑制滤波器 | double core optical fiber 双芯光纤

double-action disc harrow：双排式圆盘耙

double-action black japanned spring hinge 黑漆双弹簧铰链 | double-action disc harrow 双排式圆盘耙 | double-action gin 双动式轧棉机

double-action disc harrow：雙動盤耙

"复式道岔","Double turnout" | "双动盘耙","Double-action disc-harrow" | "双浮标寄船碇","Double-buoys mooring"

double-action disc harrow：(双列圆盘靶)双功圆盘靶

double-action die ==> 双效冲模 | double-action disc harrow ==> (双列圆盘靶)双功圆盘靶 | double-action disk harrow ==> 双排式圆盘耙

double-action disk harrow：双排式圆盘耙

double-action disc harrow ==> (双列圆盘靶)双功圆盘靶 | double-action disk harrow ==> 双排式圆盘耙 | double-action forming ==> 双效成形

Double-armed：双臂的,复式臂的

Double-acting 双作用的,双动式的 | Double-armed 双臂的,复式臂的 | Double coating 双重涂层

double-bladed plough：双铧犁

double-bladed knife switch 双闸刀开关 | double-bladed plough 双铧犁 | double-bonded hydrocarbon 双键烃

double-bottom compartment：双层底舱

double-block and bleed assembly 双止回装置和放气设施 | double-bottom compartment 双层底舱 | double-bottom margin 双层底边板

double-bottom space：双层底空间

double-bottom margin 双层底边板 | double-bottom space 双层底空间 | double-bottom tank 双层底舱

double-bottom margin：双层底边板

double-bottom compartment 双层底舱 | double-bottom margin 双层底边板 | double-bottom space 双层底空间

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.