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bottom sample

busin. 底部样本
chem. 底部试样
f.trade. 底层样品
oil 储罐底原油样; 底部样品
tech. 底质样品; 底质样 (本); 底样
water.res., ecol. 底质样本
bottom sample
: 8 phrases in 3 subjects
Mining1
Oil / petroleum2
Technology5

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