小学生书包平均重4.2公斤，超过标准达百分之53.4 .书包标准重量等同学童重量的百分之十。

On average, a primary school pupil's school bag weighs 4.2 kg, 53.8 per cent heavier than the recommended weight - which is 10 per cent of a pupil's weight.

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所述陶瓷包含氧化铝并通过喷涂 含有不超过35重量％可分散氧化铝的氧化铝溶胶和氧化铝颗粒的混合 物使之具有大孔隙。

The ceramiccomprises alumina, and is made macroporous by spraying a mixture of alumina sol and alumina particles with no more than 35 % by weight of dispersible alumina.

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动物制品如肉品或奶制品之碳排放量，往往多于同一重量之植物制品之碳排放量，最少数倍计。

The carbon emission amount of animal products such as meat or dairy products is usually higher for at least several times than that of plant products in the same weight.

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