helical gear type  螺旋齿累型; 螺旋齿轮型

gear type hydraulic pump  齿轮式液压泵

open center type steering gear  开心式转向齿轮

reciprocating type steering gear  往复式操舵装置

electro hydraulic steering gear  电动液压转向机构

eletro-hydraulic steering gear  电动液压舵机

hand -hydraulic steering gear  手动液压操舵装置

hand-hydraulic steering gear  手动液压操舵装置

hydraulic steering gear  液压操舵装置; 液压转向齿轮; 液压转向机构; 液压舵机

steam hydraulic steering gear  蒸汽-液压操舵装置

cross helical gear  螺旋齿轮

Crossed Helical gear  交错螺旋齿轮

crossed helical gear pair  交错轴斜齿轮副

cylindrical helical gear  斜齿圆柱齿轮

cylindrical helical gear with minority number of t  少齿数小直径圆柱料齿轮

cylindrical involute helical gear  渐开线斜齿圆柱齿轮

Double Helical Gear  双螺旋齿轮; 人字齿轮

double helical gear (herring-bone gear)  人字齿轮

double helical gear planer  人字齿轮刨床