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    1. The harmful substance for health includes fatal substance, substance that can arise hypersusceptibility, environmental hormone and futures.
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    2. The substance was extracted by hot distilled water to obtain a water-soluble substance (WSS) and a water-insoluble substance (WIS).
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    3. The harmful substance for health includes fatal substance, substance that can arise hypersusceptibility, environmental hormone and futures.
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    4. The substance was extracted by hot distilled water to obtain a water-soluble substance (WSS) and a water-insoluble substance (WIS).
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    5. This paper reviews character and application of synthetic base oil, including polyether, synthetic alkyl, synthetic ester, phosphate ester, silicone oil and fluorocarbon oil.
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    synthetic growth substance
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    synthetic fabrics synthetic fibre fabric synthetics
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    artificial gem artificial jewel paste jewel paste jewellery synthetic cut stone synthetic jade
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    synthetic fabrics synthetic fibre fabric synthetics
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    artificial gem artificial jewel paste jewel paste jewellery synthetic cut stone synthetic jade
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