We started to use a simple clinometer, graphical reduction of distance to draw maps in caves.我们开始使用一种简单的测斜器, 减少图解距离,并绘制出关于凹陷的地图.The caves extend for some 18 kilo-metres.那些洞穴深约18公里。The caves extend for some 18 kilometres....
The caves extend for some 18 kilo-metres.那些洞穴深约18公里。The district is pock-marked with caves.这个地区布满了坑洞。Walkways allow visitors to enter the caves in perfect safety.步行道使游客可以十分安全地进入那些洞穴....
这些漂砾彼此相隔较远并有许多填隙泥.The boulders are quite widely separated and much interstitial mud is visible.管子工用铅 、 绳子或专用填隙材料使管子的接头不漏水.Plumbers caulk joints in pipe with lead, string or a caulking compound.这些附加的离子叫做填隙式离子.These additi...
JB : Adult male lions look regal, with flowing manes framing their faces.JB: 成年雄狮看起来颇有王者风范, 飘动的鬣毛勾勒出它们的面部轮廓.JB : Adult male lions look regal, with manes framing their faces.成年雄狮看起来颇有王者风范, 飘动的鬣毛勾勒出它们的面部轮廓.Their manes stre...