polysialia |
ptyalism.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
---|---|
polysialic acid |
large hydrated polysaccharide similar to K1 of Escherichia coli.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
polystyrene |
A lightweight plastic often used in food service. Polystyrene products include trays, plates, bowls, cups and hinged containers.
Ãâó: www.moea.state.mn.us/ee/glossary.cfm
|
polystyrene |
High molecular weight thermoplastic resins produced generally by the free-radical polymerization of styrene monomer [C 6 H 5 CHCH 2 ] which can be initiated by heating alone but more effectively by heating in the presence of free-radical initiator (such as benzoyl peroxide [(C 6 H 5 CO) 2 O 2 ]. Typical processing techniques are modified mass polymerization or solution polymerization, suspension polymerization, and expandable beads. ...
Ãâó: www.mindfully.org/Plastic/Plastic-Resin-Definition...
|
polystyrene |
A plastic that comes in two forms - solid and expanded or extruded (made with a non-toxic blowing agent that gives the material a foamy quality) - is very light in weight, yet exhibitis excellent insulation qualities.
Ãâó: www.fpi.org/jahia/Jahia/cache/offonce/pid/134
|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
---|