4271-52 规格参数 |
隔离@频率:
SELECT COLUMN_NAME as bt,column_comment as nr FROM INFORMATION_SCHEMA.Columns WHERE table_name='golon_rf_kg' AND table_schema='golon' and column_comment like '*%' |
60db @ 1ghz(标准) |
插损@频率:
SELECT COLUMN_NAME as bt,column_comment as nr FROM INFORMATION_SCHEMA.Columns WHERE table_name='golon_rf_kg' AND table_schema='golon' and column_comment like '*%' |
0.7db @ 1ghz |
拓扑:
SELECT COLUMN_NAME as bt,column_comment as nr FROM INFORMATION_SCHEMA.Columns WHERE table_name='golon_rf_kg' AND table_schema='golon' and column_comment like '*%' |
吸收性 |
电路:
SELECT COLUMN_NAME as bt,column_comment as nr FROM INFORMATION_SCHEMA.Columns WHERE table_name='golon_rf_kg' AND table_schema='golon' and column_comment like '*%' |
spst |
p1db:
SELECT COLUMN_NAME as bt,column_comment as nr FROM INFORMATION_SCHEMA.Columns WHERE table_name='golon_rf_kg' AND table_schema='golon' and column_comment like '*%' |
33dbm(标准) ip1db |
特性:
SELECT COLUMN_NAME as bt,column_comment as nr FROM INFORMATION_SCHEMA.Columns WHERE table_name='golon_rf_kg' AND table_schema='golon' and column_comment like '*%' |
单线路控制 |
阻抗:
SELECT COLUMN_NAME as bt,column_comment as nr FROM INFORMATION_SCHEMA.Columns WHERE table_name='golon_rf_kg' AND table_schema='golon' and column_comment like '*%' |
75 欧姆 |
rf 类型:
SELECT COLUMN_NAME as bt,column_comment as nr FROM INFORMATION_SCHEMA.Columns WHERE table_name='golon_rf_kg' AND table_schema='golon' and column_comment like '*%' |
catv |