Roller mills grind essentially by crushing and attrition . 辊磨机主要靠挤压和摩擦研碎物料。
Aeration from the bottom of the bin fluidizes the charge . 从料箱的底部吹入空气使物料流化。
Every rising bubble drags behind it a wake of material . 每一个上升气泡后面拖曳了一股尾部物料。
The weigh belt will turn on bin shaker to start the material moving again . 带秤将开动料箱的振动器，以使物料继续流动。
Their materials costs are largely governed by prices on world markets for fuels and ores . 物料成本在很大程度上受世界市场燃料和矿产价格的制约。
A packed bed of granular material sandwiched by two perforated plates, is a good distributor . 两块孔板中间填有一层颗粒物料，是一种很好的分布板。
The material is trucked in dry form, as it comes off the filter, to the mines or excavated areas and dumped . 物料从过滤机排出后以干物质的形式用卡车运到矿山或挖空处，然后弃去。
Stabilization can also include the spraying of the soil with liquids or the mixing of materials called stabilizers with it . 稳定法还可包括用液体喷洒土壤或向土内掺混称为稳定剂的物料。
According to this model a monolayer of fines coating the coarse is the minimum needed to bring the viscosity down . 按照这个模型，粗粒物料覆盖以单层细粉是使粘度降低至细粉粘度的最小需要量。
A head chef must be an expert not only in cooking itself, but also in planning, purchasing, and supervising other kitchen personnel . 一个厨师长不仅应该是烹饪专家，而且在制定计划，采购物料和监督其他炊事员工作方面也应该是行家。
