“half-period”概念、定义、翻译-科学时代

单词	half-period
释义	动力与电气工程词汇手册 half-period 半周期，半衰期
随便看	packet radio packet replay packet sequencing packet sniffer packet sniffing packet switch packet switching packet switching packet switching Packet Switching Exchange (PSE) packet switching network packet-switching network (PSN) packet switching unit packet telemetry packet wave pack gun pack hardening pack heating furnace pack hole pack horse pack house pack ice pack ice pack in double acceptors packing

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。