NEAR RWY INCURSION WITH DEP TFC PERFORMING TKOF ABORT.

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WE WERE TAXIING OUT AT LAX AFTER BEING PUSHED FROM GATE. WE WERE CLRED TO RWY 25R VIA THE OUTER. IN THIS AREA THE RAMP BECOMES THE INNER TXWY WITHOUT ANY VISUAL IDENT AND THE OUTER IS THE FIRST TXWY ONE COMES TO VISUALLY. I AM RELATIVELY NEW TO LAX AND MISTOOK THE OUTER TXWY AS THE INNER AND THOUGHT RWY 25R TO BE THE OUTER TXWY. WE DID NOT SEE THE HOLD SHORT LINE FOR RWY 25R AND CROSSED IT. AS WE DID SO LAX GND CTL TOLD US TO STOP. WE DID SO PRIOR TO ENTERING RWY 25R. A 727 ABORTED THEIR TKOF AND ONCE THEY WERE CLR FO RWY 25R; WE WERE TOLD BY LAX GND TO TAXI ONTO RWY 25R AT TXWY 45 AND CAME OFF THE RWY AT TXWY 42 TO CONTINUE ON THE OUTER FOR TKOF. WE NEVER SAW THE HOLD SHORT LINE FOR RWY 25R AND THE TWR SUBSEQUENTLY TOLD US THAT IT DIDN'T HAPPEN ALL THAT INFREQUENTLY PLUS THE HOLD SHORT LINE WAS SCHEDULED FOR REPAINTING THAT DAY. ANOTHER FACTOR WAS THAT THERE WAS ANOTHER ACFT WITH THEIR NOSEWHEEL LIGHT ON DIRECTLY OPPOSITE TO ME ON TXWY COMING OFF RWY 25L THAT HAD MY ATTN. IT WAS DUE TO AN ALERT TWR AND GND CTLR THAT A SERIOUS PROB WAS AVOIDED. AS A POSSIBLE REMEDY THE INSTRUCTIONS FOR TAXI MIGHT BE CHANGED TO VIA THE RAMP RATHER THAN THE INNER AND VIA JULIET RATHER THAN THE OUTER. I BLAME CONCENTRATING ON THE OPPOSITE ACFT; LACK OF VISUAL CUES AND UNFAMILIARITY WITH LAX AS THE MAIN PROBS. SUPPLEMENTAL INFORMATION FROM ACN 266232: I FEEL THAT CLRNC PHRASEOLOGY OF 'TAXI 25R VIA RAMP TO KILO' AND 'TAXI 25R VIA JULIET' WOULD PRECLUDE MUCH CONFUSION AS COMPARED TO 'TAXI W54 VIA INNER' AND 'TAXI 25R VIA THE OUTER.' WHEN PROCEEDING FROM THE RAMP WHEN ONE HEARS 'TAXI VIA THE OUTER' THE THOUGHT IS TO CROSS ONE TXWY AND PROCEED TO THE NEXT. SINCE THE RAMP IS REFERRED TO AS THE 'INNER' AT LAX; THIS BECOMES VERY CONFUSING.