大家好，下面小编给大家分享一下。很多人还不知道Km是什么数学单位。下面详细解释一下。现在让我们来看看！

Km是长度的单位，即公里，km =千米。字典解释:是名词，km，km。长度单位是指空之间测量距离的基本单位，是人类为规范长度而制定的基本单位。其国际单位为“米”(符号“m”)，常用单位有毫米(mm)、厘米(cm)、分米(dm)、千米(km)、米(m)、微米(微米)、纳米(nm)等。长度单位在各个领域都起着重要的作用。

.mw-bdaihn-form { width: 100%; font-size: 1.2rem;padding-top: 1rem; } .mw-bdaihn-form .desc { width: 100%; padding: 0.1rem; box-sizing: border-box; } .mw-bdaihn-form .mw-bdaihn-title { width: 100%; box-sizing: border-box; box-sizing: border-box; padding: 0.15rem 0.15rem 0 0.15rem; display: flex; justify-content: space-between; } .mw-bdaihn-form .mw-bdaihn-title strong { padding-left: 0.45rem; color: #bc3024; background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAOBAMAAADH1sFNAAAAIVBMVEWvJRz/+/T88+zFX1bksar359+8SD+1MyrWjITNdGzv0MnQIg5xAAAAX0lEQVQI12OYwAAHExmU4WxmRQbRBBgnVZBBcDmUzb4QyBGBclgEgRzBBginEcyRBLM5BcEcIbARSRCOYDhIeyCUIwXkcAlCOYIODAyOcI4EA4cgnCNkYIjgCCorgikAU9MMYYpFR5wAAAAASUVORK5CYII=") no-repeat left center; background-size: 0.28rem; font-size: 0.36rem; } .mw-bdaihn-form .mw-bdaihn-title a { color: #b7b7b7; } .mw-bdaihn-form .mw-bdaihn-tab { width: 100%; } .mw-bdaihn-form .mw-bdaihn-tab .tab-header { width: 100%; height: 0.92rem; display: flex; align-items: center; } .mw-bdaihn-form .mw-bdaihn-tab .tab-header div { display: inline-block; text-align: center; } .mw-bdaihn-form .mw-bdaihn-tab .tab-header span { display: inline-block; cursor: pointer; height: 0.64rem; line-height: 0.64rem; } .mw-bdaihn-form .mw-bdaihn-tab .tab-header .active span { /*border-bottom: 0.046rem solid #bc3024;*/ color: #bc3024; } .mw-bdaihn-form .mw-bdaihn-tab .tab-header.col4 div { width: 25%; } .mw-bdaihn-form .mw-bdaihn-tab .tab-header.col3 div { width: 33.33%; } .mw-bdaihn-form .mw-bdaihn-tab .tab-header.col2 div { width: 50%; font-size: 18px;} .mw-bdaihn-form .mw-bdaihn-tab .tab-body { width: 100%; padding:0.1rem 0; overflow: hidden; box-sizing: border-box; } .mw-bdaihn-form .mw-bdaihn-tab .tab-body .item { width: 100%; box-sizing: border-box; padding: 0 0.15rem; display: none; } .mw-bdaihn-form .mw-bdaihn-tab .tab-body .item .row-wrap { width: 100%; background-color: #fff; box-sizing: border-box; border: 1px solid #ffe4c8; border-radius: 8px; } .mw-bdaihn-form .mw-bdaihn-tab .tab-body .item .row { width: 100%; box-sizing: border-box; padding: 5px 0; display: flex; border-bottom: 1px solid #ffe4c8; } .mw-bdaihn-form .mw-bdaihn-tab .tab-body .item .row2 { padding: 0; } .mw-bdaihn-form .mw-bdaihn-tab .tab-body .item .row:last-child { border-bottom: 0 solid #ffe4c8; }八字精批八字合婚2022运势测终身运 .app-bazijingpi .app-sex::before{ content: ""; position: absolute; left: 0; top: 50%; margin-top: -12px; width: 24px; height: 24px; background: url(data:image/png;base64,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) no-repeat; background-size: 100% 100%; } .app-bazijingpi .gender-active{color: #c72631;} .app-bazijingpi .gender-active::before { background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAMAAAC7IEhfAAAAn1BMVEUAAADiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjb////2xL/1vLbpcGP3ycT1v7nzs63xo5vkU0T++vn98fD76Ob52NT519TzrqfrfnLjSjv64t/40c33z8v2xsH0uLLvmZHvmI/vl47tj4Xsh3zqd2vnY1bmXlAxIjnfAAAAFnRSTlMA9kOI4HwnBgPQhfHwF+nvubg/5xbRlLO9LQAAAUJJREFUOMvNlOeOgzAMgC8JlE1L6RnKdc/b+/2f7fBFWTQRElKlfj+orX7CBhPfXZmQxhMvhdSbxDR0azNWgqJkM7sW+ARMiB9YvFEEl0SjC286BhvjacejBOwQatZNwUWqVw8icBMFSvQdTt3g1Zde5mjwqdqgSTIhxnZvXrVgwMTcSqt3RG+FUR5ykVq9D/SOPKZG5Wate1/oLTBStQtATtVe877RexZZwUUP47f2j1p6P+g9ytTjYoJxrZdab9tkq1pJuMiTVzTn/+F514abX1CIO6rXtsTogFGjeYno0TQf8PckLdVjIfIFGu8rvH6CTqG/R/lEciAKpiZjmkvdUpMJcxDw/l5MDWfNYWCYB+jArN/jfnfueCQzvnA3/oAz03MKB5zr/k2hV7+37p7h2wzJWK7Pg2U9GzeBhG/cW+EPV5FTrQcTVdoAAAAASUVORK5CYII=) no-repeat; background-size: 100% 100% } .app-bazijingpi input:-webkit-autofill { box-shadow: 0 0 0 100px #fff inset;} .app-bazihehun input:-webkit-autofill { box-shadow: 0 0 0 100px #fff inset; } .app-liunian2022 .app-sex::before{ content: ""; position: absolute; left: 0; top: 50%; margin-top: -12px; width: 24px; height: 24px; background: url(data:image/png;base64,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) no-repeat; background-size: 100% 100%; } .app-liunian2022 .gender-active{color: #c72631;} .app-liunian2022 .gender-active::before { background: url(data:image/png;base64,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) no-repeat; background-size: 100% 100% } .app-liunian2022 input:-webkit-autofill { box-shadow: 0 0 0 100px #fff inset;} .app-bzzsy .app-sex::before{ content: ""; position: absolute; left: 0; top: 50%; margin-top: -12px; width: 24px; height: 24px; background: url(data:image/png;base64,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) no-repeat; background-size: 100% 100%; } .app-bzzsy .gender-active{color: #c72631;} .app-bzzsy .gender-active::before { background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAMAAAC7IEhfAAAAn1BMVEUAAADiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjbiRjb////2xL/1vLbpcGP3ycT1v7nzs63xo5vkU0T++vn98fD76Ob52NT519TzrqfrfnLjSjv64t/40c33z8v2xsH0uLLvmZHvmI/vl47tj4Xsh3zqd2vnY1bmXlAxIjnfAAAAFnRSTlMA9kOI4HwnBgPQhfHwF+nvubg/5xbRlLO9LQAAAUJJREFUOMvNlOeOgzAMgC8JlE1L6RnKdc/b+/2f7fBFWTQRElKlfj+orX7CBhPfXZmQxhMvhdSbxDR0azNWgqJkM7sW+ARMiB9YvFEEl0SjC286BhvjacejBOwQatZNwUWqVw8icBMFSvQdTt3g1Zde5mjwqdqgSTIhxnZvXrVgwMTcSqt3RG+FUR5ykVq9D/SOPKZG5Wate1/oLTBStQtATtVe877RexZZwUUP47f2j1p6P+g9ytTjYoJxrZdab9tkq1pJuMiTVzTn/+F514abX1CIO6rXtsTogFGjeYno0TQf8PckLdVjIfIFGu8rvH6CTqG/R/lEciAKpiZjmkvdUpMJcxDw/l5MDWfNYWCYB+jArN/jfnfueCQzvnA3/oAz03MKB5zr/k2hV7+37p7h2wzJWK7Pg2U9GzeBhG/cW+EPV5FTrQcTVdoAAAAASUVORK5CYII=) no-repeat; background-size: 100% 100% } .app-bzzsy input:-webkit-autofill { box-shadow: 0 0 0 100px #fff inset;}

以上解释了什么是数学单位Km。这篇文章已经分享到这里了，希望能帮到你。如果信息有误，请联系边肖进行更正。