But chemicals can hold a lot of energy, so batteries have high energy density (the amount of energy they can contain, again per unit weight).
但是化学物质可以储存很多能量，所以电池有很高的能量密度（每单位重量可以包含的能量）。
| 单词 | Unit weight |
| 释义 |
Unit weight
原声例句
经济学人（汇总） But chemicals can hold a lot of energy, so batteries have high energy density (the amount of energy they can contain, again per unit weight). 但是化学物质可以储存很多能量，所以电池有很高的能量密度（每单位重量可以包含的能量）。
英语百科
Specific weight（重定向自Unit weight）
The specific weight (also known as the unit weight) is the weight per unit volume of a material. The symbol of specific weight is γ (the Greek letter Gamma). A commonly used value is the specific weight of water on Earth at 5°C which is 9.807 kN/m or 62.43 lbf/ft. |
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