跪求大神帮忙！我想知道如何能查询到德温特手工代码的含义？

| V08 : Lasers and masers
|- V08-A : Lasers
|-- V08-A04 : Laser types
CODE        V08-A04A
TITLE        Semiconductor laser
STATUS        Current  
DATE          
RELATED CODES          
SCOPE NOTES        See also U12-A01B codes for semiconductor laser body, package and manufacturing details. Includes DBR and DFB. For light-in/light-out modulators and logic gates see also V07-K codes and U12-A02C3. For testing of semiconductor laser see U11-F01C5 and V08-A06. For semiconductor laser drive circuits see U12-A01B4 and V08-A02A. For optical amplifier see V07-K01C1. For laser used to read optical disk or CD see also W04-C and T03-B codes.  
SEARCH TERMS        Active, single-heterostructure, double-heterostructure, buried, stripe, surface emitting, electrode, distributed Bragg reflection, distributed feedback, current blocking layer, lateral current confinement, quantum well, cleaved-coupled cavity