焦油7Z是一个由7Z压缩算法压缩的TAR归档文件。TAR文件可能非常大，需要进行压缩。TAR文件组合使用LZMA压缩技术进行压缩。LZMA可以以每秒1到20 MB的速度压缩TAR文件。
TAR.7Z is a TAR archive file that is compressed by 7Z compression algorithm. The TAR files can be very large and it is needed to be compressed. The TAR file combination is zipped using LZMA compression technique. LZMA can compress the TAR file at a rate of 1 to 20 MB per second.
