a thready pulse的用法和样例：
- There is mainly soft or thready pulse in atrophic gastritis, and soft or tant pulse in bile regurgitational gastritis.
- Lingering headahce, dizziness, vertigo, lassitude, lustreless face, pain relieved by warmth and aggravated by cold, overstrain or mental stress, weak, thready pulse, thin, white tongue coating.
- There is a vein of melancholy in his character.
- There was a long lag in forwarding mail to us.