负载电阻上拉电阻箱pull: vt. 1.拉,拖,牵,曳 (opp. push); 勒 ...up: adv. (superl. uppermost ) 1. ...resistor: n. 【电学】电阻(器)。 resistor, pull-up: 上拉电阻器output pull down resistor: 输出下拉电阻器下载手机词典可随时随地查词查翻译