1.
The comparison of breeding parameters of Great Tits(Parus major) nests in nest boxes and natural cavities
大山雀(Parus major)巢箱和天然洞繁殖参数的比较
2.
A natural or artificial hole or cavity in the ground.
坑，洞一个地上天然的或人工的洞或穴
3.
There were a few natural caves on the reverse solpe.
背面坡上有几个天然的山洞。
4.
FIELD WATER FLUSHING TESTS ON LARGE-SCALE NATURAL PIPE-CAVE NETWORK IN LOESS
大型天然黄土洞穴系统现场冲刷试验
5.
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。
6.
A natural hollow or depression in the body or an organ.
（人体等上的）凹窝躯体或器官上天然的洞或凹陷
7.
Formation and Evolution of Natural Landscapes of Big and Small Rock Caves in Nanshan Mountain Range in Sanya;
三亚南山大小洞天自然景观的形成与演化
8.
However, there are arguments against Cyg X- 1 being a black hole.
然而，对于天鹅座X－1是一个黑洞的说法仍然存有争议。
9.
Then the man got out of it quickly but the bull stopped,
然后洞里的人跑出洞来。
10.
Located on Fuchuan Mountain, Yongquan Town, Jiujiang County, Yongquan Cave was shaped by the collapse of geological fault.
涌泉洞位于九江县涌泉乡伏船山，是天然断层裂隙产生崩塌而形成的溶洞。
11.
Halfway into the cave is a big circular chamber known as "the palace" which is so spacious that there is room for a thousand men. The natural coffer ceiling is covered all over with necklace-like patterns.
洞中心宏伟的圆形“宫殿”，可容千人，顶上的天然藻井饰满璎珞；
12.
Cave:a hollow or natural passage under or into the earth with an opening to the surface.
洞:向地表开有出口的地下的或通向地内的中空或天然的通道。
13.
Thanks to the project of returning farmland to lakes, more than 1,400 km of flood storage area has been added to Dongting, Poyang and other natural lakes.
退田之后，洞庭湖、鄱阳湖等天然湖泊新增蓄洪面积1400多平方公里。
14.
There is an angel in the cave, or if not, an earthly paragon.
山洞里来了天使啦，要不然，也是世间少有的美少女。
15.
Study on Accumulation and Restore Effect About Nutrients of Dongting Lake Natural Wetland
洞庭湖天然湿地营养元素的积累与归还效应研究
16.
Idyll by MENG Haoran and WEI Yingwu: A Comparative Study
诗出同派 各有洞天——孟浩然、韦应物山水田园诗比较
17.
Although the existences of wormholes had long been the subject of speculation, this was the first natural occurrence of the phenomenon ever seen.
虽然天然的虫洞的存在一直以来都是人们津津乐道的话题，但这一个，却是前所未有的事实。
18.
That thief slips into upstairs of one family'sroom at Sunday night, then digging the cave on the ceiling goes in the shop.
窃贼于星期天夜间潜入楼上一家人的房间，然后在天花板上挖洞进入商店。