| 71. | and mechanical systems like a wound watch, or the sun, do in fact run out of energy in accordance with the second law of thermodynamics ( whether the whole universe does so is a moot point at present). |
| 像上紧发条的手表那样的机械装置，或太阳，也都会消耗完其能量（整个宇宙否如此，目前沿有争论）。
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| 72. | Viscosity overwhelms the smallest eddies and converts their energy into heat. |
| 粘性制服了最小的旋涡而将其能量转换为热。
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| 73. | This heating is accentuated with height because of absorption of solar energy by ozone. |
| 因为太阳能主要被臭氧所吸收，这种加热随高度的变化很突出。
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| 74. | The energy contained in light comes in little packets. |
| 光蕴含的能量是一小份一小份的。
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| 75. | These energy packets are called photons. |
| 这些具有能量的微粒叫光子。
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| 76. | A rubber ball attached to a paddle by an elastic string loses energy as it files away from the paddle. |
| 一根弹性绳把一只皮球拴在一块叶片上当球飞离叶片时，球失去能量。
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| 77. | Renewable energy is no panacea. |
| 可再生能源并非灵丹妙药。
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| 78. | Because of the increase in size, there are more myofibrils parallel to each other and more mitochondria to supply energy . |
| 由于体积增大，就有较多的互相并联的肌原纤维，又有较多的线粒体来供应能量。
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| 79. | Atomic energy is a great discovery of the present century, and many people have played a part in its development. |
| 原子能是本世纪的一大发现。许多人为原子能的发展贡献了力量。
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| 80. | In an ordinary resistance, the energy which is "lost" passes into heat. |
| 在一个普通电阻中，损失的能量转变成为热。
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