sodium formaldehyde sulphoxylate 甲醛合次硫酸氢钠 sodium formate 甲酸钠 sodium fusidate 夫西地酸钠 so
socket head cap screw 内六角螺钉 socket head wrench 内六角扳手 socket hexagon screw 内六角螺钉 socket
Smyrna cotton 士麦拿棉 Smyrna rug 士麦拿地毯 snag gritter 铺砂机 snagging wheel 粗砂轮 snail car
ze buffering spring 小型缓冲弹簧 small sized loader 小型装载机 small spanner set with ring 小型环式组合扳手
slow neutron interferometer 慢中子干涉仪 slow relay 慢速继电器 slow release relay 缓释继电器 slow rel
sleeper tongs 枕木钳 sleeper 枕木 sleeper-layer 轨枕铺设机 sleeping avoiding device for driver
pajamas 滑雪式睡衣裤 ski-wear 滑雪衣 skiameter X射线强度计 skiascope 爱克斯射线透视镜 skiatron 黑迹管
single-roll crusher 单辊破碎机 single-roll hammer crusher 单辊击打式破碎机 single-roller mill 单辊轧粉机
sodium para-nitro phenolate 对硝基酚钠 sodium paraphosphate 焦性磷酸钠 sodium pentachlorophenate 五氯酚钠
eel shaft 滑轮轴 sliding wheel 滑轮 sliding york 滑动叉 sliding-vane compressor 滑片式空气压缩机