49. The system of claim 40 , wherein: each segment translation server comprises: a first segment translation server cache operable to store language model data obtained from the plurality of language model servers and the replica language model servers for translating a segment, and a second segment translation server cache storing a selected portion of the language model in the plurality of language model servers and the replica language model servers.
49. The system of claim 40 , wherein: each segment translation server comprises: a first segment translation server cache operable to store language model data obtained from the plurality of language model servers and the replica language model servers for translating a segment, and a second segment translation server cache storing a selected portion of the language model in the plurality of language model servers and the replica language model servers. 50. The system of claim 49 , wherein: each segment translation server is operable to, after completing translation of the segment, delete data in the first segment translation server cache and retain the selected portion of the language model in the second segment translation server cache.