极细粉

龟甲炮制品研极细粉入药比1995年版《中国药典》的用时捣碎为优。

RESULTS : Processing tortoise shell with vingar is better than that of heating with sand and boiling with vinegar , which was recorded in pharmacopeia of china , 1995 .

通过对沉积物粒度分析，揭示出鄱阳湖典型湿地现代沉积物主要由含泥细粉砂至泥质极细粉砂组成，反映出三角洲前缘低能沉积环境。

Based on granulometric analysis on the present deposits of the typical wetland in Poyang Lake , the components of these present deposits are exposed to range mainly from fine silt with mud to very fine muddy silt , showing low-energy depositional environment of the delta front .

炭纤维制成极细的粉粒后，其微粒的表面结构与表面特性将有显著的改变，导电性能也与长丝略有不同。

When carbon fibre is made into fine powder , its surface structure and property will change remarkably , of which the electrical conductivity is also slightly different from the long thread .

高B4C相含量极细碳化硼粉的制取

A study of superfine boron carbide powder with high b_4c phase content

随着土壤水分、速效磷、极细砂粒、粉粒以及粘粒含量的增加，PH值、速效钾、中砂粒和细砂粒含量的减少，白刺中根和细根系生物量增加。

Root biomass increased with the increasing of soil moisture , available phosphorus , fine sand , silt and clay content , pH value , available potassium , and the sand and fine sand content .

细砂、极细砂及细粉砂的含量较高。粘粒、中砂、粗砂及胶粒含量较低。土壤上部粒度较细，下部粒度略变粗。

There are also a higher contents of very fine sand , clay sand and fine sand , but there are lower content of coarse sand and medium sand .

由于速度极慢，应选取研磨得极细的咖啡粉来萃取。

Due to extremely slow speed , should select a very fine abrasive powder to extract the coffee .

苏贝淖湖滨沉积物颗粒主要包括极粗砂、粗砂、中砂、细砂、极细砂、粉砂和粘粒。

The main conclusions are following : Sediment particles mainly includes extremely thick sand , thick sand , medium sand , fine sand , very fine powder sand silt and viscous grain .