填空题 Complete the summary below using NO MORE THAN TWO WORDS from the passage.Write your answers in boxes 33-38 on your answer sheet.The use of talc powder in olive oil industry in Spain has been around for 1 years. It is extremely useful in dealing with difficult olives which often produce a lot of 2due to the high content of solid matters.The traditional method of oil extraction used in some smaller plants often produces 3, which contains emulsified oil, and if it is directly disposed of it may be 4to the environment, because it cannot 5. But adding talc powder can absorb the emulsifier and increase the production, because the size of oil 6grows.