Scanning every customer is approximately o (m), not o (MN), because almost all customer vectors contain a small number of items, regardless of the size of the catalog.
扫描每一个顾客大约是O (M)，而不是O (MN)，因为几乎所有顾客向量都只含有很少的商品，无需考虑产品目录的规模。
I'm looking for O & M Advertising Company.
我在找奥美广告公司。
The lithium ion can stabilize the layered structure by enhancing the interaction between two interlayers of O-M-O.
锂离子嵌入通过增强两个O - M - O夹层的相互作用，从而稳定了层状结构。
The mixtures of o-, m-, p-chlorobenzoic acid are analyzed and the results are satisfactory.
用该法对邻、间、对-氯苯甲酸混合物进行测定，结果良好。
In accordance with the procedure of USA SOP-CR-007 standard, it is derived that, when r. o. m. coal is mixed with mineral matter, the mixture varies in property compared with r. o. m. coal.
按照美国SOP-CR - 007标准提供的方法，得出了当原煤与矿物质掺混时，混合物的性质与原煤比较发生了变化。
The o-, m-, p-trifluoromethyl phenol were important intermediates in medicines, pesticides and dyes.
邻位、间位、对位三氟甲基苯酚都是重要的医药、农药和染料中间体。
The o-, m-, p-trifluoromethyl phenol were important intermediates in medicines, pesticides and dyes.
邻位、间位、对位三氟甲基苯酚都是重要的医药、农药和染料中间体。
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