双滑车

double luff

五饼滑车组(上三饼

double luff 绞辘 | double luff 五饼滑车组(上三饼 | double make contact 双闭合触点

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

twofold purchase

双倍复滑车

twofold frequency system 双频制 | twofold purchase 双倍复滑车 | twofold-gang 双联

double block brake

双块式制动器

double blast 双重音汽笛 | double block brake 双块式制动器 | double block 双轮滑车

double block brake

双瓦闸

double bend 双弯头 | double block brake 双瓦闸 | double block 双轮滑车

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

boom heel block

吊杆根部滑车

"双吊杆顶间控索","boom head guy" | "吊杆根部滑车","boom heel block" | "下斜桁主桅帆","boom mainsail"

double-shear lap riveting

双剪搭接铆接

double-shear joint 双剪接合 | double-shear lap riveting 双剪搭接铆接 | double-sheave top lift block 双轮千斤索滑车

two-sheave block

双轮滑车

two-shaft free power turbine engine ==> 双轴自由燃气轮机 | two-sheave block ==> 双轮滑车 | two-sheet mineral ==> 双层结构矿物

shoe block

双轮正交滑车

爆震波 shockwave | 双轮正交滑车 shoe block | 舵跟材 shoe piece

Fix, Unfix,Group,Ungroup：(固定, 不固定,成组, 不成组)

Align Components(元件对准) 79 | Fix, Unfix,Group,Ungroup(固定, 不固定,成组, 不成组) 80 | Select Net(选择线网) 80

glycol monoacetate：乙二醇一乙酸酯

glycol lubricant 乙二醇润滑剂 | glycol monoacetate 乙二醇一乙酸酯 | glycol monobenzyl ether 乙二醇一苄醚