Any of a breed of characteristically large, reddish-brown or chestnut-colored draft horses.
役马，拖车马一种以红棕色或栗色为特征的大型载重马
A breed of saddle horse developed in northwest North America, characteristically having a spotted rump.
阿帕卢萨马北美洲西北部的一种乘骑用马，特征为尾部有斑点
An electromagnetic wave of audio frequency produced by atmospheric disturbances such as lightning, having a characteristically decreasing frequency responsible for a whistling sound of descending pitch in detection equipment.
啸声干扰一种由于诸如闪电等大气干扰而产生的音频电磁波，具有典型的逐渐减弱频率的特征，该频减引起了检波设备中调逐渐下降的啸声
