structured programming language,结构化程序设计语言

student's distribution,学生氏t分布

stylus,笔尖

stylus printer,针式打印机

stylus recorder,针式记录仪

subaddress,子地址

sub-bottom seismic profiling system,海底地层剖面仪

subharmonic,次谐波

subharmonic resonance response,分谐波共振响应

subharmonic response,分谐波响应

subharmonic wave,分谐波

subjective probability,主观概率

sublimating heat,升华热

submersible,潜水器

suboptimal control,次优控制

suboptimal system,次优系统

suboptimality,次优性

subroutine,子程序

subroutine call,子程序调用

substitution method,替代法

substitution (method of) measurement,替代测量（法）

subsurface buoy system,水下浮标系统

subsystem,次系统

successive approximation type,逐次逼近型

sufficient burning,充分燃烧

sulfur dioxide analyzer,二氧化硫分析仪

SUM byte,总和字节

sum peak,和峰

summation [totalizing] current transformer,总和[总加]电流互感器

summation instrument,总和仪表

summer,加法器

summing point,相加点

sunshine,日照

sunshine duration,日照时间

sunshine recorder,日照计；日光仪

sunshine weather meter,阳光耐气候试验箱

supper-coated open-tubular; SCOT column,涂载体空心柱

superconducting electromagnetic lens,超导电磁透镜

superconducting magnetometer,超导磁力仪

superconducting quantum magnetometer,超导量子磁强计

superconductive gravimeter,超导重力仪

supervision,监控

supervision level,监控级

supervisor,监控站

supervisory computer control system,计算机监控系统

supervisory control,监督控制

supervisory program,管理程序

supplementary insulation,辅助绝缘

supply apparatus,电源装置

support,载体

support program,支持程序

support type current transformer,支持式电流互感器

supporting electrode,支持电极

supporting knife-plane,承重刀座

supporting pin,支力销

suppressed-zero range,零点下降范围

suppressed-zero scale,抑零标度

surface acoustic wave pressure transducer,表面声波式压力传感器

surface acoustic wave transducer [sensor],声表面波传感器

surface analysis,表面分析

surface conductive humidity transducer [sensor],表面电导式湿度传感器

surface echo,表面反射波

surface emission ion source,表面发射离子源

surface finish,表面粗糙度

surface finish measuring instrument,表面粗糙度测量仪

surface finish transducer [sensor],表面粗糙度传感器

surface gradient sampler,表面梯度采水器

surface mounted (pressure) gauge,凸装压力表

surface replica,表面复型

surface tension balance,表面张力天平

surface thermometer,表面温度计

surface visibility,地面能见度

surface wave,表面波

surface wave probe,表面波探头

surface wave technique,表面波法

surge pressure,冲击压力

surplus sensitivity,灵敏度余量

susceptibility meter,磁化率仪

suspension system,悬挂系统

suspension theodolite,悬式经纬仪

sustained oscillation,自持振荡

sweep,扫描

sweep device,扫描装置

sweep rate,扫描速率

swee,涌；浪

swing period,摆动周期

swinging plate anemometer,压板风速表

swirl angle,旋涡角

swirl reducer,旋涡消除器

swirling flow,旋涡流

switch,开关

switching box,切换箱

switching error,切换误差

switching frequency,开关频度

switching point,切换点

switching time,切换时间

switching value,切换值

symbol of a unit (of measurement),（测量）单位的符号