Halfter哈尔夫特halfn.一半；下半场；半学年adj.一半的；不完全的adv.一半地；不完全地half stable limit cycle半稳定极限环half-wave transformer半波变压器half round bent scraper半圆弯头刮刀half wave rectification半波整流half-and-half joint对拼接头half-bordered pitpair半缘纹孔对half-power beam width半功率波束宽度half right-face march半面向右转走half wavelength voltage半波长电压half-and-half clasp对半卡环