能否把MemoryStream作为RPC通信消息的变量

我现在想把接收到的一个memoryStream流作为另一个RPC消息通信的变量，进行二次通信。

尝试把stream转成string，再还原会stream，但是貌似两个流并不是同一个。解析会报错

(ushort _, MemoryStream memoryStream) = MessageSerializeHelper.MessageToStream(msg);

memoryStream.Position = 0;

StreamReader reader = new StreamReader(memoryStream);

string text = reader.ReadToEnd();

MemoryStream stream = new MemoryStream();

StreamWriter writer = new StreamWriter(stream);

writer.Write(text);

writer.Flush();

ushort opcode = BitConverter.ToUInt16(stream.GetBuffer(), Packet.KcpOpcodeIndex);

Type type = OpcodeTypeComponent.Instance.GetType(opcode);

object message = MessageSerializeHelper.DeserializeFrom(opcode, type, stream);