ball joint是什么意思

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用法例句

Preparation of ZrO_2 spherical nanometer powders;

球形纳米氧化锆粉末的制备

Preparation and characterization of uniform spherical nanometer silver powder;

规则球形纳米银粉的制备及表征

The preparation of ZrO_2 spherical nanometer powders via emulsion processing route;

用乳液法制备ZrO_2纳米球形颗粒

The results show that SiO2 is amorphous sphere at a 40nm diameter, and its surface has a lot of hydroxyl groups, which can form an absorption film on metal surface

结果表明二氧化硅为40nm左右的球形,属于无定形结构,表面含有大量的羟基,可在金属表面形成吸附薄膜。

The experimental results of XRD and SEM show that the CaS:Mn2+, Eu2+ phosphors possess the crystalline structures with sphere, the mean grain sizes of phosphors are 250-400nm.

在微波场作用下，首次快速合成了球形亚超细尺寸的 ＣａＳ： Ｍｎ２＋，Ｅｕ２＋深红色荧光 体，ＳＥＭ照片显示其粒径为２５０～４００ｎｍ，并可观察到纳米粒子的团聚现象，呈现零维纳米材 料的特性。

For the improved phosphors, the ideal morphology is that of perfect sphere.

喷雾热解法是近年来新兴的合成无机功能材料的方法 ,使用这种方法制备的发光材料一般具有均匀的球形形貌 ,粒子的粒度分布窄 ,这不仅有利于提高材料的发光强度 ,还可以改善发光粉的涂敷性能并提高发光显示的分辨率。

High purity spherical-normal spherical submicron crystal silica is prepared by using technique of mixing acid corrosion(anhydrofluoric acid and sulphuric acid) and method of mechanical stir from raw powder quartz.

以天然粉石英为基本原料,通过氢氟酸与盐酸混合酸溶蚀技术和机械强力搅拌处理,制备了高纯球形-准球形亚微米晶质SiO2材料。

The effects of contamination removal were researched to treat municipal wastewater by biodegradation enhanced with adding spherical fillings in integrated vertical-flow infiltration systemIVIS.

球形填料通过提高系统的硝化活性,增加对氨氮的降解转化效率,同时生物量的大小,也是影响氨氮的降解转化效率的重要因素。

The preparation of spherical powder of silicone rubber,whose active groups are epoxy group and dodecyl,are introduced,as well as the preparation of its aqueous dispersions.

介绍了含活性基团(环氧基、长链烷基等)硅橡胶球形微粉的制备、硅橡胶球形微粉水分散液的制备。

The preparations and application of spherical powder of addition vulcanization and condensation vulcanization of methyl silicone rubber were introduced, and its surface modification was discussed too.

介绍了加成硫化和缩合硫化的甲基硅橡胶球形微粉的制备方法及其应用,以及甲基硅橡胶球形微粉的表面改性方法。