单词	唱和神詩者
释义	同CHOIR
随便看	installation drawing installation envelope installation error installation exit installation exit routine installation floater installation flux density [for an interior lighting] installation gas-fired installation guide bracket installation index installation management installation material installation-- mounting installation; mounting installation news installation of instrument and control system installation of overhead conductors and ground wires installation oriented utility installation performance specification installation processing control installation profile installation program installation qualification installation qualification {=iq} installation rate of input/output point