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最可取得方法是从设备表面直接取样。
The most desirable is the direct method of sampling the surface of the equipment.
youdao
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水质取样及检测设备准备齐全。
Samples of water quality and inspection equipment are ready.
youdao
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水质取样及检测设备准备齐全。
Samples of water quality and inspection equipment are ready.
youdao