| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| TB 1777-1986 | English | 279 |
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Days<=3
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(Railway passenger station broadcasting equipment standard series and the main technical conditions)
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TB 1777-1986
| Obsolete |
TB 1777-1986
|