<span><span style、" font-family: 宋体;">半逆作法</span></span>
<span><span style、" font-family: 宋体;">部分逆作法</span></span>
<span><span style、" font-family: 宋体;">分层逆作法</span></span>
<span><span style、" font-family: 宋体;">分段逆作法</span></span>
<span><span style、" font-family: 宋体;">全逆作法</span></span>