1. Strong maintenance and spares market for remaining AQS-13(V)s2. AQS-22 ALFS replacing those earlier AQS-13 variants that are deemed too old and not worth upgrading3. Export version, AQS-18(V), gaining market share.
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机译：1.剩余AQS-13（V）s r n2的强劲维护和备件市场。 AQS-22 ALFS替代了那些被认为过旧且不值得升级的早期AQS-13变型 r n3。出口版本AQS-18（V）赢得了市场份额。
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