1.
Study on the Formation and Protection of the Karst Caves in Yangchun National Geopark, Guangdong;
广东阳春国家地质公园岩溶洞穴的形成与保护研究
2.
A small cave or cavern.
洞穴小的山洞或洞穴
3.
This karst landscape in the state of New Mexico comprises over80 recognized caves.
位于新墨西哥州的卡尔斯巴德洞穴国家公园是由目前已发现的81个洞穴组成的喀斯特地形区。
4.
Caves form when water infiltrates limestone.
水渗透石灰石则形成洞穴。
5.
Formation and Stratigraphy of the Chuanfan Cave;
船帆洞旧石器遗址洞穴形成过程与地层划分
6.
a curved shape in the vertical plane that spans an opening.
横越洞穴的垂直平面上的曲线形状。
7.
An animal's hollowed-out habitation, such as a burrow.
洞穴动物中空的洞穴，如地洞
8.
Large openings are formed by burrowing animals.
穴居动物还造成了更大的洞隙。
9.
a large cave or a large chamber in a cave.
巨大的洞穴或洞穴中的巨大堂室。
10.
A member of a fabulous or prehistoric race of people that lived in caves, dens, or holes.
史前穴居人神话中的或史前的居住在洞、穴中的人种中的一个成员
11.
In the spring, they leave the water to pup (give birth) in snow or ice dens or on top of the ice itself.
春天，它们离开海水，到冰雪形成的洞穴里面——甚至干脆独自到冰山的最高点进行生育。
12.
Astronomers think the big rock bombs made huge holes when they hit.
天文学家们认为，正是这些巨大的岩石炸弹撞击水星时形成了巨大的洞穴。
13.
A cave or hollow used as a refuge or hiding place.
洞穴一个用于避难或藏身的洞穴或空洞
14.
The dwelling caves found in the eastern part of Gansu Province are the extension and development of the primitive cave life, characterized by their low cost of construction and comfort.
陇东窑洞是原始洞穴居住形式的延续和发展,以“陶复”、“陶穴”为主要类型。
15.
eyeless fish that evolved in dark caves; an eyeless needle.
在黑暗的洞穴中进化而成的无眼鱼；没有眼的针。
16.
vast cavernous chambers hollowed out of limestone.
由石灰石做成的中空的巨大洞穴状房间。
17.
the division or partitioning of a cavity into parts by a septum.
通过隔膜把洞穴分成许多部分的分隔和划分。
18.
Nature made this den, a cave undercutting bluff of beautiful orange-beige sandstone.
这是个浑然天成的洞穴。山洞在一个浅桔色的砂岩峭壁之下。