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1 Waste can be classified into unharmful waste, harmful waste (including inorganic and organic waste) and nuclear waste according to the level of harmful on environment.

2 I do not know which mosquito is the unharmful male or the blood- thirsty female among them.

3 The integrated controlling techniques such as chemical ecology techniques and unharmful chemical insecticides techniques have been studied.

4 The blocking glue of cancerous serosa(F TH glue) is unharmful to human body.

5 Preliminary results have been achieved to eliminate these striations by doping with some unharmful element such as borons (B2O3) into the vacancies of BNN crystals.

6 RH-5849 is one of the best new form and unharmful pesticide which can be used in control of the grubs instead of those high-residual and high toxic pesticides.

7 Related readings: Trace radiation found in more Chinese areas China to test water, food for radiation Radiation rise confirmed, locals remain unfazed Radiation remains unharmful in China.

8 Injectable scaffold materials of tissue engineering can rehabilitate or cure bone lack and bone abnormality in unharmful or tiny harmful way.

9 The maceration test to detoxicated Chromium slag was made under simulated conditions of nearly nature environment, and the results show that detoxicated Chromium slag is unharmful to the environment.