To ensure oil purifier working in normal condition,the interval between two sludge discharging should not exceed() hours.
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Oil mist detectors are usually used on board to detect oil mist density within ().
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One of the reasons that causes oil flowed from sludge outlet of a self-cleaning purifier is ()
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The port State control officer will ensure that()is performed by all crude carriers either required to have a crude oil washing system or where the owner or operator chooses to install a crude oil washing system.
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Heavy residual fuel oils are heated prior to centrifuging to ()
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Fuel oil is regularly transferred to the day tank in order to ()
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The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated ()
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To ensure the ship’s general stability,().
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词根purg的语义是to purify,unexpurgated的词义是( )。
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From the author's point of view, the best way to prevent oil spills is to get rid of oil completely.
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Passage 1Plants and animals that have been studied carefully seem to have built-in clocks. These biological clocks, as they are called, usually are not quite exact in measuring time. However, they wor