S type thermocouple with short length
focal length
透镜焦距
物焦距
天线焦距
焦点距离
焦距
焦
凹面反射镜
焦深
焦长
focal length calibration
focal length of objective glass
short driving and short lining
anchorage length and lap length
ratio of pulse length to the total cycle length
span length of length bar
36-Item Short Form Health Survey
3-core short circuit wire
a person of short stature