悬臂有很多种，但有种常见的悬臂由低成本三脚架、铝合金杆臂、摄像机机座和配重块构成。
There are many versions out there, but a common one is fashioned out of a low-cost tripod, aluminum poles, camera mount, and a counter weight.
通常白云石晶体构成格架，它有均匀分布的孔隙。
Commonly the dolomite crystals form a framework with evenly distributed porosity.
由于德国阳光蓄电池材料不可能绝对的纯，且正极板与栅架金属(铅锑合金)本身也构成电池组。
Because Germany sunshine battery materials can't be absolutely pure, and positive plate metal, lead antimony alloy with the grid frame itself constitutes a battery pack.
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