您要查找的是不是：
- ground flash density map 落雷密度图
- ground flash density 地闪密度
- The data were collected on Siemens 1.5 T Sonata MRI systems and analyzed by SPM 99 to generate gray matter density map. 数据分析采用以SPM99软件包为基础的全自动VBM技术进行处理。
- This is an older population map of China, but you can see that the density of people in Chengdu is greater than anyplace else:cHINA POPULATION AND DENSITY MAP. 这是一张旧的中国人口图，但你能看到成都的人口密度比任何地方都高。
- cloud-to-ground (CG) lightning flash density 地闪密度
- He pressed the switch and all the lights on the switch and all the lights on the threshing ground flashed on together. 他扳下电闸，打谷场上的灯一下子全亮了。
- You will run a MATLAB? program that loads some images (T1 and proton density maps). 使用MATLAB程式载入一些影像（T1与质子密度图）。
- Just getting this far required using single particle electron cryomicroscopy (cryo-EM) to produce three dimensional density maps of the molecule at sub-nanometer resolution. 为了看得更清楚起见，我们需要运用用于原生颗粒的冷蚀刻电子显微镜来观察在亚纳米分辨率下产生的三维分子图像。
- The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- The ground was covered with ferns. 地面上长满了羊齿植物。
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
- Rachel who died last week was still above ground. 雷切尔上星期去世，现在还没安葬。
- This car really comes into its own on rough ground. 这辆汽车在颠簸的路上才真正显示出它独特的性能。
- They put some wreathes on the ground. 他们把一些花环放在地上。
- The ground was ploughed and planted with corn. 地翻耕后种上了玉米。
- He takes his ground on intuition. 他的意见是凭直觉。
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- A good hot summer could dry the ground out. 一个炎热的夏天可以将大地干透。
- Bob pecked at the hard ground with a pickaxe. 鲍勃用鹤嘴锄在坚硬的地面上挖掘。
- The fence posts were fixed firmly in the ground. 栅栏的立柱牢牢地固定在地上。
