They made joints in stone keeping the lintels in place horizontally using a tongue and groove joint and subsequently fixing the upright and lintel with a ball and socket joint or mortice and tenon.
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2. 山脚下有一堵石崖，崖上有一道缝，寒号鸟就把这道缝当做自己的窝。
A stone cliff is under the foot of a hill. On the cliff, there is a aperture, and it is also the nest of the bird.
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3. 过去成群的鸽子栖息在石缝里。所以这里也叫鸽子窝公园。鹰角石是最佳观日出处。
In the past, groups of doves nested in the cracks there, so it is also called dove nest Park.
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4. 雌虎在临产时会选择人迹罕至的深山老林、岩洞、石隙中做窝，此时如有人进入产仔区则必受伤害。
Parturient tigresses will choose inaccessible places such as deep forests, caves and rock crevices as their lair. Anyone who gets access to their lair would no doubly be injured seriously.
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5. 雌虎在临产时会选择人迹罕至的深山老林、岩洞、石隙中做窝，此时如有人进入产仔区则必受伤害。
Parturient tigresses will choose inaccessible places such as deep forests, caves and rock crevices as their lair. Anyone who gets access to their lair would no doubly be injured seriously.
