而当很冷的时候，竖毛机会使头发竖起来，汗腺的输送管也会变小来聚集热量。
When it's cold, the arrector muscle pulls the hair up. The duct to the sweat glands gets small to conserve heat.
术后传统组和改良组均有部分动物出现震颤、活动迟缓、易激惹、竖毛、尾僵等异常行为。
Postoperatively part of the rats in the traditional group and improved group had the abnormal behaviors of tremor retardation irritability piloerection and stiffness of tail etc.
结果模型组大鼠注射药物后出现小便失禁，呼吸急促，竖毛肌收缩，眼球突出，肢体抽搐等。
Results There were many significant symptoms in model group after injection, such as urinary incontinence, shortness of breath, contraction of erector muscle, eyeball proptosis, limb twitch.
此犬颈毛倒竖，呲牙咧嘴地恶嚎，又吠叫着退却，逃跑时结结实实尿了一路。
The pup raised her hackles, growled, barked and backed up, releasing a huge trail of urine as she escaped.
当助训员逐渐接近犬，他可能会在犬的行为中，注意某些冲突的征象(即，如上所述的颈毛倒竖、明显升高的吠叫，撤退等等)。
As the helper gets closer to the dog, he will probably notice some signs of conflict (stress) in the dogs behavior (i. e., raising hackles, high pitched bark, retreat).
小狗慢吞吞地打量着胡萝卜，背上的毛竖了起来。
The fur on the puppy's back rose as he slowly sized up(4) the carrot.
小狗慢吞吞地打量着胡萝卜，背上的毛竖了起来。
The fur on the puppy's back rose as he slowly sized up(4) the carrot.
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