双行铆接

double chain pulley

双链滑轮

double ceiling 双层铺板 | double chain pulley 双链滑轮 | double chain riveting 双行并列铆接

double-rigging luff

双套复滑车组

double-rigged 装有双吊杆的 | double-rigging luff 双套复滑车组 | double-riveted seam 双行铆接缝

dogshore

止滑木

复板舵doubleplaterudder | 止滑木dogshore | 双行铆接doubleriveting

double chain riveting

双行并列铆接

double chain pulley 双链滑轮 | double chain riveting 双行并列铆接 | double chain sling 双吊货套链

double-riveted

双行铆接的

double-riveted seam 双行铆接缝 | double-riveted 双行铆接的 | double-rope pulley 双索滑轮

double-riveted seam

双行铆接缝

double-rigging luff 双套复滑车组 | double-riveted seam 双行铆接缝 | double-riveted 双行铆接的

single-shear double rivet joint

单剪双行铆接

single-shear bolt ==> 单剪螺栓 | single-shear double rivet joint ==> 单剪双行铆接 | single-shear joint ==> 单剪连接

double rotary engine

双排缸回转引擎

688 双行铆接 double rivet joint | 689 双排缸回转引擎 double rotary engine | 690 双座停止阀 double seat stop valve

Supposed to Be：应该吧

我想我该睡了 i think i should slp | 应该吧 supposed to be | 希望 hope so

Plain Weave：平布

509 hopsack 方平织物 | 510 plain weave 平布 | 511 panama 巴拿马薄呢