锌作为电池负极材料，其优点有：平衡电位低、可逆性好、质量比能量和体积比能量高，而且锌资源丰富、价格低廉、毒性小、易处理。
Zinc acts as negative material of batteries, with the advantages of low equilibrium potential, good reversibility, high specific energy, rich resources, low cost, little poison and easy treatment.
边底水驱油藏水油体积比表征了天然能量大小，是确定油藏开发方式和开发对策的关键。
Water-oil volume ratio of edge-bottom water reservoir presents the capacity of natural energy. It's the key to determine reservoir development scheme and strategy.
以恒定有限的力与能量，任凭于比光的电磁波物质体积、质量更小的物质，则其速度就是超光速的。
With constant limited force and energy, and let in the electromagnetic wave of than light material volume, quality of material more small, the speed is faster than the speed.
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