在结构选型中存在着很多影响因素，包括定量和不定量的。
There are many quantitative and faintness factors during the structural form selection .
离心式污水泵(即污水提升泵)，是典型的以输送固液两相流为主，同时含有不定量气体的多相流流体机械。
The centrifugal sewage pump is the typical multi-phase flow fluid machinery, which is mainly used to transport and lift solid-liquid two-phase flow including a certain extent of gas.
根据堆积型铝土矿矿体的特点，结合生产工艺技术的要求，构建堆积型铝土矿堆场的不定量与定量配矿的数学模型。
According to the characteristics of the accumulated bauxite and the demands of production technology, the mathematical model for non-quantitative and quantitative ore blending in yard was constructed.
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