小粒

By means of Tyndall effect,electron microscope and ultrafiltration it is found that the catalyst dispersing in butadiene-hydrogasoline solution exists in little particle form and that the particle sizes are from to 100mm.

通过Tyndall效应、电镜观察和超过滤实验，证明镍催化体系在溶有丁二烯的加氢汽油中以小颗粒分散，粒径在1～100nm之间，为胶体催化剂，属于高度分散的多相催化体系。

By Tyndall effect, electronic microscopic and super-filtering experiments, it was proved that V3-Al2Cl catalyst is a colloidal catalyst in butadiene-containing toluene solvent, which belongs to a multiphase catalyst. The diameters of the catalytic particles are from 1 nm to 100 nm, and the active sites are on the surface of the amorphous colloidal particles.

通过Tyndall效应、电镜观察和超过滤实验，证明了在溶有丁二烯的甲苯溶剂中V3-Al2Cl催化体系以小颗粒分散，粒径在1～100 nm之间，为胶体催化剂，属于高度分散的多相催化体系。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。