查询词典 assembly hall

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-sided assembly：双面组装

double-sideband transmitter 双侧频带发送器 | double-sided assembly 双面组装 | double-sided board 双面电路板

drag chain：牵引链

drag bar;牵引杆 | drag chain;牵引链 | drag chain assembly;牵引链总成

drag chain sprocket：牵引链链轮

drag chain assembly;牵引链总成 | drag chain sprocket;牵引链链轮 | drag chain takeup bearing;牵引链张紧轴承

drill barrow：手推滚筒式条播机

drill assembly ==> 条播装置总成 | drill barrow ==> 手推滚筒式条播机 | drill bit ==> 钻头,钎头,打孔钻头=>ドリルビット

drill bit run：钻头行程

drill assembly 钻柱组合 | drill bit run 钻头行程 | drill bit 钻头

drill and turning tool holder：钻孔与车削两用刀夹

drill and steel wire gage ==> 钻径及钢丝规 | drill and turning tool holder ==> 钻孔与车削两用刀夹 | drill assembly ==> 条播装置总成

driving gear box：传动齿轮箱,主动齿轮箱

driving gear assembly ==> 驱动齿轮组件 | driving gear box ==> 传动齿轮箱,主动齿轮箱 | driving gear key ==> 主动齿轮键

dropping angle：减斜角

dropper 滴管;挂钩;支脉 | dropping angle 减斜角 | dropping assembly 降斜钻具组合

drum selector switch：卷筒(形)选择器开关

drum scraper assembly;筒形刮土板总成 | drum selector switch;卷筒(形)选择器开关 | drum selector valve;卷筒(形)选择器阀

geomagnetic equator：地理磁赤道

地磁要素 geomagnetic element | 地理磁赤道 geomagnetic equator | 地磁场 geomagnetic field

a corporate charge card：公司赊帐款

corporate travel expenses公司差旅费 | a corporate charge card公司赊帐款 | cash advances预付款