We've all used a canopy of leaves to produce a frame around a subject in our compositions, but you can take this technique to the extreme by getting down low and shooting from the ground up.

我们都用过拍摄对象周围的植物叶子充当过相框，但你也可以把这个技术用得极端一些，从很低的角度，从地面往上拍摄。

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This is a technique we use a lot in the office because it not only adds interest below the ground plane but also explains where the section is cut and how it relates to the floor plan.

这是一个我们在办公室里用了多次的技术，因为它不仅增加了对地平面以下区域的关注度和兴趣，而且也解释了剖面是从哪里剖开的以及它和平面图之间的关系。

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This paper will provide decision information to persons who engage in GPS study and management, so that the GPS technique can be used better in the ground deformation and seismic study.

为从事GPS研究和管理工作的科技人员提供决策信息，以促进GPS技术研究和管理，在地形变与地震研究中更好地发挥作用。

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Working with 36 people on a sophisticated cookbook, he made his own ketchup out of mushrooms, and he ground meat using a special technique and different cuts of beef to enhance the juiciness of a burger that takes 30 hours to cook.

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In February this year Mark Swain of the Jet Propulsion Laboratory in California and his colleagues reported that they had developed a new technique for calibrating data arriving at ordinary ground-based telescopes, allowing them to identify the components of an extrasolar atmosphere.

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The technique allows very precise measurements to be made of any ground displacement that takes place between the image acquisitions.

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