中心称污水样本中包含的6价铬超出国家允许排放标准20倍以上。
The center said a sewage sample contained more than 20 times the amount of chromium-6 allowed by national standards.
他用他的食品室来储藏含有从河流和运河里采集的含有污水样本的塑料瓶。
He used his pantry to store plastic bottles containing muddy water samples from streams and canals.
他用他的食品室来储藏含有从河流和运河里采集的含有污水样本的塑料瓶。
He used his pantry to store plastic bottles containing muddy water samples from streams and canals.
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