time travel - How did Skynet send back the T-1000 and the T-X?

As we learn in the original Terminator movie only living, organic material can be sent back in time:

REESE: "You go naked. Something about the field generated by a living organism. Nothing dead will go."

SILBERMAN: "Okay. Okay. But this... cyborg...if it's metal..."

REESE: "Surrounded by living tissue."

SILBERMAN: "Of course."

If this is the case then how was Skynet able to send the fully inorganic T-1000 and T-X model Terminators back in time?

Answer

The simplest explanation is that they were covered with the same sort of "skin" that the T-800 wore in the first movie, and then sloughed it off once they arrived in the past.