头

reversible tap holder

可逆转丝锥夹头

reversible surcoat with zipper front 可反穿拉链胸襟外衫 | reversible tap holder 可逆转丝锥夹头 | reversible tapping chuck 可逆式攻丝夹头

pan head and swell neck rivet

截锥头粗颈铆钉

箱筏 pontoon raft | 截锥头粗颈铆钉 pan head and swell neck rivet | 截锥头直颈铆钉 pan head with parallel neck rivet

Stud bolt threads

双头螺栓螺纹

nonferrous metals 非铁金属 | Stud bolt threads 双头螺栓螺纹 | Studded connections 双头螺纹连接

plunger head stop plate

柱塞头座板

piston head stop plate 活塞头座板 | plunger head stop plate 柱塞头座板 | port plate of priming stage 自吸段孔板

steering head lock key

转向头钥匙

steering head lock ==> 转向头保险 | steering head lock key ==> 转向头钥匙 | steering horizontal shaft ==> 换向机水平轴

spline shaft yoke

花键轴叉头

spline shaft milling machine ==> 花键轴铣床 | spline shaft yoke ==> 花键轴叉头 | spline slip yoke ==> 花键套叉头

hexagon socket screw

六角凹头螺钉

hexagon slotted nut 六角有槽螺母 | hexagon socket screw 六角凹头螺钉 | hexagon socket set screw 六角凹头固定螺钉

socket screw key

凹头螺钉键

socket screw hexagon wrench 内六角扳手 | socket screw key 凹头螺钉键 | socket screw 凹头螺钉

snap head machine screw

半圆头机器螺丝

snap head bolt 半圆头螺栓 | snap head machine screw 半圆头机器螺丝 | snap panty 揿钮短裤

single-headed stud

单头芯撑

single-headed rail ==> 单头轨 | single-headed stud ==> 单头芯撑 | single-helical gear ==> 单螺旋齿轮

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