克洛维斯人使用的矛头和后期的矛头有些不同，克洛维斯矛头的石基座是薄的，即越接近基座（接在矛上的一端）越薄。
The point used by Clovis people differs slightly from later points, in the way that the base of the stone is thinned—it's thinner toward the base, the part that's attached to the spear.
特别是，薄的电池不能捕获光谱红端的很多光线，这意味着它比相同面积的标准电池少产生20%的电。
In particular, thin cells fail to capture much light at the red end of the spectrum. That means they produce up to 20% less electricity than standard cells of equivalent area.
而虽然在翻转九十度后打字变的简单许多，但打久了便渐渐的开始觉得较薄的那端似乎让手掌有点被切割的不适感（好像也不能怪它太薄...）
Turn it 90 degrees and it's much easier to opposably tap at the thing, but then the somewhat sharp edges on the skinny side start cutting into your palms.
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