
pulsed
词源
源自拉丁语 'pulsare'(击打),通过古法语 'pulser' 进入英语,最初指有节奏的敲击动作。
verb
❶ 指物体或能量以脉冲形式运动或释放,表现为有规律的间歇性波动或振动。
“The laser pulsed at a frequency of 10 Hz.”
(激光以10赫兹的频率脉冲发射。)
“His veins pulsed visibly under the skin.”
(他的血管在皮肤下清晰可见地搏动着。)
❶ 比喻某种活动或现象以间歇性方式发生或增强。
“Excitement pulsed through the crowd as the concert began.”
(音乐会开始时,兴奋感在人群中一阵阵涌动。)
“News of the discovery pulsed across scientific communities.”
(这一发现的消息在科学界引起一阵阵反响。)
adjective
❶ 描述以脉冲形式运作的设备或系统特性。
“The pulsed laser achieved higher precision in cutting.”
(脉冲激光实现了更高精度的切割。)
“Pulsed radio signals are less susceptible to interference.”
(脉冲无线电信号较不易受干扰。)
常见短语
pulsed emission — 指能量或粒子以不连续脉冲形式释放的现象,常见于物理学和天文学领域。
“Astronomers observed pulsed emissions from the neutron star.”
(天文学家观测到中子星的脉冲辐射。)
pulsed operation — 描述设备通过间歇性工作来优化性能或节约能源的运行模式。
“The radar's pulsed operation extended its battery life.”
(雷达的脉冲工作模式延长了电池寿命。)