协调飞机在地面上的交通和掌控空中交通一样复杂。
Coordinating airline traffic on the ground is as complicated as managing the traffic in the air.
在地面上看不见的图案可能是空中照片中最为醒目的部分。
Patterns that are invisible on the ground can be the most striking part of an aerial photograph.
由于天气恶劣，飞机在地面上又停留了两个多小时。
The plane remained on the ground for two more hours because of the bad weather.
从太空中，它们可以分辨出你在地面上的位置，误差不超过10米。
From space, they can tell where you are on the ground, with a difference of no more than 10 meters.
为了确保他们不跑步，竞走运动员必须保持有一只脚在地面上。
To make sure that they do not run, race walkers must have one foot on the ground at all times.
当植物在地面上生长时，它们的茎生长得方向与重力相反（重力是让你的脚留在地面上的力量），因此它们总是向上生长。
When plants shoot on the earth, their stems grow away from the gravity (the force that keeps your feet on the ground), and so they always shoot upwards.
低耕农业在地面上留下许多或全部土壤，以及植物残体。
Low Till Agriculture leaves much or all the soil and remains of plants on the ground.
一束束光线透过树丛照射下来，在地面上形成了大小不一的斑点。
Rays of light filtered through the trees, forming spots of varying sizes on the ground.
那就解释了为什么最小型的食草动物，汤普森瞪羚，能以水果为食；虽然水果非常有营养，但是在地面上太稀少，不足以维持体型更大的动物生存。
That is why the smallest of the herbivores, Thomson's gazelle, lives on fruit that is very nutritious but too thin on the ground to support a larger animal.
直到上周，我才在地面上游览它们。
爸爸不喜欢高处，所以他呆在塔的底部，在地面上拍照。
Dad doesn't like heights, so he stayed at the bottom of the tower and took pictures from the ground.
陷阱可以是任何放置在地面上的小容器，其顶部与周围的表面齐平，并装满防腐剂。
A pitfall trap can be any small container placed in the ground with the top level with the surrounding surface and filled with a preservative.
对付干旱的另一种方法是在地面上种植特定数量的植物，并且确保地下有广大的根系网络。
Another way of countering drought is to have a limited amount of mass above ground and to have extensive root networks below ground.
那些挂在每面墙上，或立在地面上的，是那些在她之前来，达到了艺术顶峰的前辈们的作品。
Those hanging from every wall, or upon stands in the ground, are the works of those who came before them and reached the apex of their profession.
飞行员可以在战区上空飞行，在地面上扔下数千个小型无线传感器，每个传感器只有一块小鹅卵石大小，价格为1美元。
Pilots can fly above a war zone and drop thousands of small wireless sensors, the size of a small pebble and costing a dollar apiece, over the terrain.
在地面上的大门口沮丧地发芽。
它们可以排列在地面上或用外部连接的楼梯堆叠在一起。
They can be lined up on the ground or stacked up with an external staircase connecting them.
它们通过树枝“绕路而行”，以避免在地面上可能遭受的危险。
Instead of risking danger on the ground, they are known to make "long detours" through treetops.
从那儿往向下看，你可以看到陈列在地面上的恐龙化石。
From there you can look straight down to the dinosaur fossils displayed on the floor below.
杰克：有时他们在地面上找到东西，有时他们在地下或在石头下找到东西。
Jake: Sometimes they find things on the ground. Sometimes they find things under the ground or under rocks.
它是一种啄木鸟，可以锤击树木，喜欢在地面上觅食，往往掘地来寻找蚂蚁。
Flickers are woodpeckers that can hammer trees but prefer to forage on the ground. They often dig in the dirt for ants.
在地面上，头三年全球的气温会降低1度多一点(1.8华氏温度)。
On the ground, global temperatures would fall by a little over 1 degree Celsius (C) (1.8 Fahrenheit (f)) over first three years.
在地面上，四个超大型望远镜中的每一个都忙碌着，凝望着遥远的宇宙。
On the ground, each of the four Very Large Telescopes is busy keeping an eye on the distant universe.
在瑞典足坛，门柱是立在地面上的，这也使门柱成为作弊者的主要目标。
In Swedish football, goalposts rest on top of the playing field, making them prime targets for cheaters.
水晶桥得名自水晶泉和多处桥梁，水晶泉在地面上流淌，而博物馆是围绕着桥梁设计的。
Crystal Bridges takes its name from Crystal Spring, which flows on the grounds, and from the multiple Bridges around which the museum is designed.
这个圆锥体沿着飞行路线在地面上扫过，底部与地面接触部分产生连续的轰隆声。
As the cone spreads across the landscape along the flight path, they create a continuous sonic boom along the full width of the cone's base.
在地面上，他清除了一块铁板上面的碎石，铁板上的字显示为“公用设施通道”。
On the ground, he clears the rubble away from a panel that reads, “UTILITY SYSTEM ACCESS.”
智利矿工以迷信著称，而挖掘工作正好进行了33天，这对等在地面上的家属来说是个吉兆。
Chilean miners are famously superstitious and, for the families waiting on the surface, it seemed like a good omen that it had taken exactly 33 days to dig the shaft.
智利矿工以迷信著称，而挖掘工作正好进行了33天，这对等在地面上的家属来说是个吉兆。
Chilean miners are famously superstitious and, for the families waiting on the surface, it seemed like a good omen that it had taken exactly 33 days to dig the shaft.
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