⚖️ 药衡磅 ↔ 打兰Apothecary pound to Dram (avoirdupois)
药衡磅与打兰互算（1 lb ap = 210.651428571 dr）。本地换算，附常用相关单位。Convert apothecary pound and dram (avoirdupois) (1 lb ap = 210.651428571 dr). Runs locally with related units.
点击任意一行可复制该结果；小于 0.0001 或不小于 10¹⁵ 的数值用 × 10ⁿ 科学计数法显示Click any row to copy that result. Values below 0.0001 or at least 10¹⁵ are shown in × 10ⁿ notation
使用说明与常见问题How-to & FAQ
「药衡磅 ↔ 打兰」是什么？What is the Apothecary pound to Dram (avoirdupois) tool?
药衡磅与打兰互算（1 lb ap = 210.651428571 dr）。本地换算，附常用相关单位。Convert apothecary pound and dram (avoirdupois) (1 lb ap = 210.651428571 dr). Runs locally with related units.
如何使用「药衡磅 ↔ 打兰」？How do I use the Apothecary pound to Dram (avoirdupois) tool?
在「药衡磅 ↔ 打兰」中输入数值并选择原单位，表格会同时列出换算到所有其他单位的结果，可一键复制。Enter a value in the Apothecary pound to Dram (avoirdupois) and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 药衡磅等于多少打兰？How many dram (avoirdupois) in 1 apothecary pound?
1 lb ap = 210.651428571 dr（按国际定义系数）。1 lb ap = 210.651428571 dr (international definition).
如何把药衡磅换算成打兰？How do I convert apothecary pound to dram (avoirdupois)?
结果 = 数值 × 210.651428571。例如 1 lb ap = 210.651428571 dr。result = value × 210.651428571. Example: 1 lb ap = 210.651428571 dr.
药衡磅/打兰属于哪类单位？What kind of units are apothecary pound/dram (avoirdupois)?
二者同属「质量」量纲，可安全互算；也可打开「weight-converter」做多单位对照。Both are mass units; see also the weight converter hub.
换算系数准确吗？Are the conversion factors exact?
「药衡磅 ↔ 打兰」采用国际单位制（SI）或公认标准中的定义值作为换算系数，结果保留约 10 位有效数字。The Apothecary pound to Dram (avoirdupois) uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「药衡磅 ↔ 打兰」免费吗？需要注册吗？Is the Apothecary pound to Dram (avoirdupois) free? Do I need an account?
「药衡磅 ↔ 打兰」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Apothecary pound to Dram (avoirdupois) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.