double rigging luff
2-1与2-1复绞辘
To slacken(a line)or to release and separate the blocks of(a tackle).
放松（绳索），松开（绞辘）的滑轮
The windlass creaked slowly as the rope wound up, each creak bringing the bucket nearer the top.
辘轳吱吱嘎嘎地缓缓地响着，井绳被一圈圈绞起来，随着这响声，吊桶逐渐升到了井口。
glad-hearted, and ravenous;
兴致勃勃，却也饥肠辘辘；
The cart rumbled past.
大车轱辘轱辘地驶过。
The clamorous hunger in his belly seemed to justify him.
他肚中的辘辘饥肠似乎就是他的理由。
trams rumbling through the streets
发着辘辘声驶过大街的电车.
Molleton: Cotton material used for covering of damping rollers.
水辘布:包裹水辘用的棉质物料。
Forme rollers: Rollers in contact with the plate on a press.Also called Plate inkers.
版墨辘:印刷机上接触版面的墨辘。
A wagon rumbled over the ground.
一辆大篷车辘辘地驶过场地。
He rumbled the wagon down the street.
他驾着大篷车辘辘行驶在街上。
The travelling carriage rolled in sight.
旅行马车辘辘驶进了视野。
A cart rumbled along (the road).
一辆载货马车辘辘地 (沿路) 跑过。
He was very hungry and was looking for food in the field.
他饥肠辘辘地在原野中找寻食物。
The cab crawled along, and she was in an agony of impatience.
马车轱辘轱辘朝前驶，她心急如焚。
Damping (Dampening )distributor: The roller with a lateral reciprocating motion in addition to rotation which applies the moisture to the dampers. Also called Dampening vibrator.
分布水辘:把水份分布在水辘上的辘；它除转动外还用左右往复移动。
Dancer roller: A wrighter or spring-loaded roller in contact with the web to compensate for uneven tension, Also called Tension roller, Idler, Jockey orll.
张力辘:用弹簧或砝码拉紧的辘。它与纸卷接触，以抵消纸上的不均匀张力。亦称 辘，骑辘。
Dampener: American term.
水辘:英文是美国术语。