After experimental period the concentration of the pollutants in water reduced to more than 89, 80, 95 percent respectively. The trichlorobenzene has been accumulated by sediment and plankton.

实验周期后，水中污染物浓度分别降低了89%，80%，95%以上，三氯苯在底泥和浮游生物中有积累。

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Pain is not necessarily are generally experimental treatment for a period of time after diagnosis.

疼痛与否也不一定，一般都是试验性治疗一段时间后才诊断。

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