single-focusing mass spectrometer,單聚焦質譜計

single function(measuring)instrument,單功能（測量）儀表

single gauge measurement,單計[片]測量

single grain layer varistor,單顆粒層電壓敏電阻器

single-idler electronic belt conveyor scale,單托輥電子皮帶秤

single input single output control system;SISO control system,單輸入單輸出控制系統

single-jet water meter,單流束水表

single-junction SQUID,單結量子干涉器

single junction temperature transducer [sensor],單結溫度傳感器

single level process,單級過程

single loop control,單回路控制

single loop control system,單回路控制系統

single loop controller,單回路控制器

single magnet galvanometer,單磁式振動子

single-pass internal reflection element,單通內反射元件

single-path diagonal-beam flowmeter,單聲道斜束式流量計

single-path ratio thermometer,單通道比色溫度計

single piston pressure-vacuum gauge,單活塞壓力真空計

single-plane (static) alancing,單面（靜）平衡

single-plane (static)balancing machine,單面（靜）平衡机

single probe technique,單探頭法

single range (measuring) instrument,單范圍[量限]（測量）儀表

single sheet apparatus for measuring specific total losses of magnetic sheet and strip,單片電工鋼片[帶]比總損耗測量裝置

single scintillation radioactive logger,單道閃爍輻射測井儀

single-speed floating action,單速無定位作用

single-speed floating controller,單速無定位控制器

single-tube manometer,單管壓力計

single tube mercury manometer,單管水銀壓力表

single value nonlinearity,單值非線性

single variable control system,單變量控制系統

sinker,（浮子流量計）浮子

sintered gas sensor,燒結式气敏元件

sinusoidal quantity,簡諧波

siphon action,虹吸作用

siphon barometer,虹吸气壓表

siphon pipe [tube],虹吸管

siphon rainfall recorder,虹吸式雨量計

six component balance,六分力天平

Six's thermometer,最高最低溫度表；西克斯溫度表

skip distance,跨距點

slant visibility,斜能見度

slave operation,從動工作

slave station,從站

slaved system,受役系統

slaving principle,役使原理

silding vane rotary flowmeter,刮板流量計

sling psychrometer,手搖干濕表

sling thermometer,手搖溫度表

slip bezel ring,滑動蓋環

slope error over 10%,10%段的斜率誤差

slope factor,斜率

slope over 10%,10%段斜率

slope/temperature factor adjustment of pH meter,pH計的斜率/溫度系數校准器

slurry packing,勻漿填充

small focus X-ray tube,小焦點X射線管

Smith-McIntyre mud sampler,史密斯﹛麥金太爾取泥器

snaking motion value of specimen stage,樣品台調節蛇行量

snap ring,開口環

snapper grab sampler,表層采樣器

snow density meter,積雪密度計

snow measuring plate,積雪板

snow-stake,測雪樁

snow-storm,雪暴

snow storm meter,雪暴測定儀

snowfall,雪量

snowfall totalizer,累計雪量計

snowgauge,量雪器

snowsampler,雪取樣器；取雪器

snubber,限制器

soap-film burette,皂膜量管

soft bearing balancing machine,軟支承平衡机

soft ionization,軟電离

soft keyboard,軟鍵盤

"soft" X-rays,軟X射線

software,軟件

software compatibility,軟件兼容性

software cost,軟件成本

software design procedure,軟件設計過程

software development library,軟件開發庫

software development plan,軟件開發計划

software development process,軟件開發過程

software documentation,軟件文件

software engineering,軟件工程

software environment,軟件環境

software library,軟件庫

software maintenance,軟件維護

software monitor,軟件監督程序

software package,軟件包

software package of computer aided design,計算机輔助設計軟件包

software portability,軟件可移植性

software product,軟件產品

software psychology,軟件心理學

software quality,軟件質量

software reliability,軟件可靠性

software testing plan,軟件測試計划

software testing,軟件測試

software tool,軟件工具

soil evaporimeter,土壤蒸發儀