《明史·志·卷一》
所以壶漏祇是用来弥补晨昏阴晦仪晷表臬的不足之处，而不是确定时辰的根本。
故壶漏特以济晨昏阴晦仪晷表臬所不及，而非定时之本。
Therefore, the water clock is only used to make up for the shortcomings of the Yin eclipse sundial in the morning and evening, not the basis for determining the time.
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 故壶漏特以济晨昏阴晦仪晷表臬所不及，而非定时之本。 [/INST] Therefore, the water clock is only used to make up for the shortcomings of the Yin eclipse sundial in the morning and evening, not the basis for determining the time.</s>
Explain the meaning of this Classical Chinese passage in English: 故壶漏特以济晨昏阴晦仪晷表臬所不及，而非定时之本。
user
Therefore, the water clock is only used to make up for the shortcomings of the Yin eclipse sundial in the morning and evening, not the basis for determining the time.
assistant