to estimate or measure the level, size, etc. of sth 估计；测量◆We rely on previous sales figures to gauge demand. 我们依靠以往的销售数据来估计需求。◆gauging the strength of the economy 测量经济实力
to make a judgement about sb/sth 判定；判断◆It's too early to gauge whether the scheme was a success. 判断这项计划是否成功还为时过早。
() to measure sth accurately using a special instrument （用仪器）测量◆precision instruments that can gauge the diameter to a fraction of a millimetre 可以测出直径为不足一毫米的精密仪器