| 1. | Dilutions are not exactly the same .
稀释度并不是恰好相同。
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| 2. | There is no hard and fast rule about dilution .
至于稀释程度，没有严格的规定。
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| 3. | He attributed this to a dilution effect of the herbicide .
他把这归因于除草剂的稀释效应。
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| 4. | The chemical dilution technique transcends most of the difficulties .
化学稀释法能克服大部分困难。
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| 5. | It is important to draw a sharp contrast between isolation and dilution .
把隔离和稀释两者划清界线是重要的。
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| 6. | Water sprays are used to break the foam by dilution and mechanical action .
采用水喷雾法，通过稀释和机械作用破坏泡沫。
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| 7. | The dilution method was obviously too tedious and uncertain for routine use .
稀释法明显太费事、太没把握了，不适用于常规操作。
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| 8. | In the first method, one drop of this dilution is dropped into the conjunctival sac .
第一种方法是将一滴这种稀释液滴入结膜囊。
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| 9. | The quality of dilution water, which if contaminated leads to incorrect bod values .
稀释水水质受到污染就会导致求得的BOD值不够准确。
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| 10. | The dilution of the textile wastes by domestic sewage weakens the concentration of the former .
由于生活污水的稀释作用，降低了纺织废水的浓度。
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