element 33
元素33
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Methods Sampling of 33 specimens from surface water, groundwater and spring water, do microbiological and metal element (iron, manganese) tests.
方法采集地表水、地下水、山泉水样本33份，进行微生物学检验及铁、锰等金属元素检测。
youdao
Another element of the deal is the supply of helicopters: 30 Blackhawks and 33 Hueys.
ECONOMIST: Colombia
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