light beam of finite size

light weight and small size

light weight and small size machine

Particle Size and Size Distribution

polymer particle size and size distribution

pore size and pore size distribution

Size and Size Distribution

(LED) Light Emitting Diode

[endoscopic]cold light source

[laser] light scattering detector

100% low-floor light rail vehicle

1550 nm light transmission of sub-carrier modulate trunk

193nm light source

2MQES light field

3-chip light engine

3rd generation synchrotron light source

4f cross light path

4MFSS light field

55Q light rail