Then, quantitative description of rock structure is achieved by introducing rock-mass block index based on drilled rock samples of different complete lengths.
引入基于钻孔岩芯不同完整长度的岩体块度指数，以定量地表征岩体结构。
2
Three are ciphers that can take input plaintexts of large and varying lengths and will output the ith block of the ciphertext after having processed only the first i blocks of the plaintext.
Moreover, this decoder is also compatible with various block-lengths and code-rates, so only one decoder is needed for different LDPC codes with the same column weight.