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| 31. | A substance, such as rust, formed by corroding. |
| 腐蚀产物象锈一样由于腐蚀而产生物质 |
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| 32. | The property of matter that gives rise to inertia is much more promising. |
| 物质产生惯性的特性，还是很有价值的。 |
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| 33. | The amount of material produced during fission is insignificant. |
| 裂变时产生的物质数量是不够的。 |
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| 34. | An antigenic substance has the potential of producing an allergic response in certain individuals. |
| 抗原物质在某些个体内有产生变态反应的潜能。 |
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| 35. | In addition, the substance should be inorganic, that is, it should never have been part of, or derived from, a living thing. |
| 此外，这种物质必须是无机物质，也说是说，它不是生命物质的一部分，也不是由有机物所产生的物质。 |
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| 36. | A black hole exerts a strong gravitational pull and yet it has no matter . |
| 一个黑洞能产生强大的吸力，但它却没有物质。 |
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| 37. | An electric current produced by illumination of a photoelectric material. |
| 光电流由光电物质的照明而产生的电流 |
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| 38. | This action creates acid that damages the tooth. |
| 这一过程将产生一种损害牙齿的酸性物质。 |
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| -- 来源 -- 交互式慢速英语-夏季号 - Dental Health (II) |
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| 39. | According to the theory, matter can only be created in particle-antiparticle pairs. |
| 依照理论，物质只能在粒子-反粒子对中产生。 |
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| 40. | the substance will react chemically with the gas and become inert. |
| 我们的物质会和天然气产生作用而失效 |
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