| http://www.w3.org/ns/prov#value | - product contains less impurities (quality is improved). [0011] According to conventional electron beam irradiation techniques, however, a high-energy electron beam is used to crosslink, cure or modify objects at a high rate, and no consideration is given to energy efficiency. [0012] Conventional techniques are also associated with problems such as the problem that much initial investment is requir
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