火山灰火山爆发喷射出来的粉末状颗粒物质.

Pulverized particulate matter ejected by volcanic eruption.

可以过滤自来水中的泥沙，铁锈，大颗粒物质。

Tap water can filter sediment, rust, large particulate matter.

因为粘稠度低和不含颗粒物质,很容易管饲.

Low viscosity and absence of particulate matters ensured ease of administration through feeding tubes.

降低颗粒物质排放；

Decreases particulate-matter emissions;

这些反渗透膜能分离水分子，以及在微过滤器中分离小颗粒物质。石膏会在磷矿颗粒的表面上结晶。

These range from separation of water molecules by reverse osmosis through separation of small particles in microfiltration.

从这些结果，可以算出颗粒物质的熵力及熵能级差。

From the above results, the entropy force and the difference of the entropy levels belonging to the granular material is calculated and discussed.

能分离水分子,以及在微过滤器中分离小颗粒物质.

These range from separation of water molecules by osmosis through separation of small particles in microfiltration.

研究者在每个参试者嘴巴前30厘米区域采集空气样本并测量颗粒物质浓度。

Air in the breathing zone (about 30cm from the mouth) was sampled for each trip to measure PM concentrations.