螺杆

conical twin-screw

锥形双螺杆

双螺杆挤出机:twin extruder | 锥形双螺杆:conical twin-screw | 双丝间接电弧:twin-wire indirect arc

Twin-Screw surface

双螺杆曲面

反螺旋密封:anti-screw non-contact seal | 双螺杆曲面:Twin-Screw surface | 双螺杆挤出机:twin-screw extruder

knurled screw

滚花头螺杆

knurled nut 滚花螺母 | knurled screw 滚花头螺杆 | knurled screw 滚花头螺杆滚花头螺钉

knurled screw

滚花头螺杆滚花头螺钉

knurled screw 滚花头螺杆 | knurled screw 滚花头螺杆滚花头螺钉 | knurled wheel 滚花轮

screwdrive

螺杆传动

screwdredger 绞吸式挖泥船 | screwdrive 螺杆传动 | screwdriven 螺杆传动的

screwless extruders

无螺杆挤压机

螺旋压机 screw press | 无螺杆挤压机 screwless extruders | 螺杆活塞预塑系统 screw-plunger perplastication system

single-screw extruders

单螺杆挤压机

single-point methods单点法 | single-screw extruders单螺杆挤压机 | single-screw, single-stage extruders单螺杆单段挤压机

lead screw tester

导螺杆测试器

导螺杆量测仪 lead screw measuring machine | 导螺杆测试器 lead screw tester | 铅遮蔽 lead shielding

worm type oil pump

螺杆油泵

worm stem 螺杆 | worm type oil pump 螺杆油泵 | worm wheel 涡轮

single-screw pump

单螺杆泵

single-screw plodder 单螺杆压条机 | single-screw pump 单螺杆泵 | single-screw steamer 单螺旋桨轮船

algebraic multiplicity：代数重度

algebraic logic of pocket calculator 袖珍计算机的代数逻辑 | algebraic multiplicity 代数重度 | algebraic number 代数数

Rafat NAZIR：巴基斯坦电视台 记者

Rafaqat HUSSAIN 巴基斯坦电视台 技术支持 | Rafat NAZIR 巴基斯坦电视台 记者 | Rana Tahir MEHMOOD Daily Jang 编辑