求翻译：奇数规格的平衡块都有一个中间行列，在进行半个数块互换时必须通过它。①把需要进行的行半个互换的数块（已换过的除去），与中间行（列）的对称数块（已换过的除去）进行互换②再把同一中间行（列）的任一数块（已换过的除去）与原①数块对称行（列）的数块（已换过的除去）进行对称互换。是什么意思？

Odd block has a size of the middle ranks of the balance, carrying half the number of blocks must be exchanged through it. ① the need for exchange of half the number of line blocks (already replaced the removed), and the middle row (column) the number of symmetry blocks (already replaced the removed)

正在翻译，请等待...

The odd number specification counterbalance all has middle ranks, when carries on half integer block exchange must pass it.①Line half exchange several which needs to carry on (already has traded except), with middle line (row) symmetry several (have traded except) carries on the exchange②Again ident

Balanced block of odd specifications have an intermediate ranks, at the time of half a block swap must pass through it. ① to need for of line half a swaps of number block (has for had of dropped), and middle line (column) of symmetric number block (has for had of dropped) for swaps ② then to same mi

Balanced block of odd specifications have an intermediate ranks, at the time of half a block swap must pass through it. ① to need for of line half a swaps of number block (has for had of dropped), and middle line (column) of symmetric number block (has for had of dropped) for swaps ② then to same mi