螺钉

screwworm

苍蝇的幼虫

screwstock 螺钉条料 | screwworm 苍蝇的幼虫 | screwwrench 螺旋扳手

iron scurf

铁屑

iron screw with square head 方头铁螺钉 | iron scurf 铁屑 | iron shackle 铁钩环

find one's sea legs

不晕船

on one's last legs 奄奄一息 | find one's sea legs不晕船 | screwhead 螺钉头

sea-born debris collecting ship

垃圾收集船

螺钉机,压螺纹机 screw machine | 垃圾收集船 sea-born debris collecting ship | 海况 sea state

joint sealant

接头密封剂

joint screw 接头螺钉 | joint sealant 接头密封剂 | joint sleeve 连接套筒

four seater

四座小客车

four-screwlevelinghead 四螺钉安平头 | four-seater 四座小客车 | four-sectioncut 四段掏槽

securing ring

锁紧环

securing point 系固点 | securing ring 锁紧环 | securing screw 固定螺钉

self-drive

自己起动

self-drillingtappingscrew自钻孔自攻丝螺钉 | self-drive自己起动 | self-drivemotor自起动电动机

self-locking bolt

自锁螺栓

self-locking adjuster screw;自锁调节螺钉 | self-locking bolt;自锁螺栓 | self-locking nut;自锁螺母

self-lubricating bearing

自润轴承

防松固定螺钉 self-looking set screw | 自润轴承 self-lubricating bearing | 自润轴头 self-lubricating journal

Hydraulic sizer：水力筛分机

hydraulic setting refractory 水凝[性]耐火物 | Hydraulic sizer 水力筛分机 | hydraulicking 水掘法

roadside trees：街头树路树

rna splicing rna 剪接 | roadside trees 街头树路树 | roaring 咆哮