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| 71. | (1*) Labour, then, in the physical world, is always and solely employed in putting objects in motion; |
| 因此，在物质世界中，劳动总是而且仅仅是用 来使物体产生运动。 |
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| 72. | 2700 可溶于冷水，使用高速搅拌器或配浆站专用机器可避免产生结块，浆液溶涨20分钟后即可使用。 |
| E—2700 is added to cold fresh water with efficient stirring. The solution is ready for use after a maximum of20 minutes. |
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| 73. | These two chemicals interact with each other at a certain temperature to produce a substance which could cause an explosion. |
| 这两种化学物质在一定的温度下相互作用产生一种引起爆炸的物质。 |
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| 74. | This is because it blocks acid production, stimulates alkali and improves blood flow in stomach tissue. |
| 这主要是因为辣椒素能够抑制体内酸性物质的产生、进碱性物质的分泌、能加快胃部组织的血液循环。 |
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| 75. | This material may be the debris resulting from the sliding of one surface upon another. |
| 这种物质可以是一个表面在另一表面上滑动所产生的岩屑。 |
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| 76. | Materials Hazardous only in Bulk |
| 仅在散装时危险的物质仅在散装运输时会产生危险的货物 |
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| 77. | This statement, or formula, showed the great amount of energy that could come from a tiny piece of matter. |
| 这一表达式或公式说明了极小的物质可以产生极大的能量。 |
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| 78. | The early scientists could not explain how heat could flow into a substance to bring about a change of state. |
| 早期科学家解释不了热是怎样传入物质，结果产生状态变化的。 |
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| 79. | Strong attraction of ferromagnetic objects may occur at close distances to the magnet, where the magnetic field is above50 to100 gauss. |
| 在靠近磁场时，磁场强度达到50-100高斯，对铁磁性物质产生强吸引力。 |
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| 80. | We may define chemistry as the science in which we deal with the chemical change in matter as a result of which it is possible to form a new stance. |
| 我们将化学定义为：在人们中，处理物质间化学变化，并且此变化可能会产生一个新物质的科学家。 |
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