soil oven,烘土箱

soil thermometer,直管地温表

solar constant,太阳常数

solar radiation,太阳辐射

solarigraph,总日射计

solarimeter,总日射表

solenoid,螺线管

solenoid coil,电磁线圈

solenoid valve,电磁阀

solenoid valve for freon,氟里昂用电磁阀

solenoid valve for gas,煤气电磁阀

solenoid valve for steam,蒸气电磁阀

solenoid valve for water,水用电磁阀

solid electrolyte oxygen analyzer,固体电解质氧分析器

solid front case with pressure relief at back,后部带泄压装置的前封式外壳

solid scanning length measuring instrument,固体扫描式测长仪

solid scanning transducer,固体扫描传感器

solid scanning width meter [gauge],固体扫描式宽度计

solid-stage electrolyte gas transducer [sensor],固体电解质气体传感器

solid-state electrolyte humidity transducer [sensor],固体电解质湿度传感器

Solid-state electrolyte oin transducer [sensor],固体电解质离子传感器

solid-state (X-ray) detector,固态（X射线）检测器

solid-stem liquid-in-glass thermometer,棒式玻璃温度计

solo,单独布置；单独检测

solvent removable dye penetrant testing method,溶剂去除着色渗透探伤法

solvent removable penetrant,溶剂去除性渗透液

sonar,声纳

sonar dome,声纳导流罩

sone,宋（响度单位）

sonic [critical] Venturi nozzle,音速[临界]文丘里喷嘴

sonic logger,声速测井仪

sonic nozzle,音速喷嘴

sound daffle,声障板

sound energy density,声能量密度

sound field,声场

sound intensity,声强

sound intensity level,声强级

sound level,声级

sound level calibrator,声级校准器

sound level meter,声级计

sound power,声功率

sound power level,声功率计

sound pressure,声压

sound pressure level,声压级

sound pressure transducer [sensor],声压传感器

sound radiation,声辐射

sound ray tracking plotter,声线轨迹仪

sound reflector,声反射器

sound source,声源

sound spectrum,声谱

sounding,探测

source language,源语言

source of electron gun grid bias,电子枪栅偏压电源

source of radiation,辐射源

source program,源程序

source slit,离子源狭缝

space byte,空格字节

space remote sensing,航天遥感

space telemetry,航天遥测

spacelab,太空实验库

spacer,衬圈；垫片

spaceship,宇宙飞船

span,量程

span calibration gas,量程校准气

span drift,量程漂移

span error,量程误差

span of impact specimen supports,冲击试样支座跨距

span shift,量程迁移[偏移]

spark-proof instrument,安全火花型仪器

spark source,火花电离源

sparker,电火花震源

spatial filter,空间滤波器

spatial resolution,空间分辨率

special simulation technique,特殊仿真技术

specific acoustic impedance,声阻抗率

specific gravity,比重

specific humidity,比湿

specific permeability,比渗透率

specific resistance,电阻率

specific retention volume,比保留体积

specific service (pressure) gauge,特殊用途压力表

specific viscosity,比粘

specific weight,专用砝码

specification,规格

specified characteristic curve,规定特性曲线

specified sensitivity,规定灵敏度

specimen,试样；样品

specimen chamber,样品室

specimen cooling holder,致冷样品台

specimen heating holder,加热样品台

specimen holder,样品杯；样品杆；试样架

specimen-holder assembly,样品（支持）器组件

specimen rotating holder,旋转样品台

specimen tensile holder,拉伸样品台

spectral background,光谱背景

spectral bandwidth,光谱带宽

spectral characteristic curve,光谱特性曲线

spectral density,谱密度