[求助]rvvp/rvv/rvs三中线的区别...

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<p>r代表是软线，v代表是材质<span style="FONT-FAMILY: 宋体; COLOR: #333333; FONT-SIZE: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">聚氯乙烯，P代表是屏蔽，s代表是双绞线</span></p>