1) size fraction
粒级结构
1.
Three methods for the determination of phytoplankton size fractions, microscopical sizing, chlorophyll a sizing and electronic sizing, were carried out for phytoplankton species from Jiaozhou Bay.
基于 2 0 0 1年 8月胶州湾浮游植物综合调查资料 ,对显微测量粒径分析法、叶绿素 a粒级分离法、电子粒度分析仪法这 3种浮游植物粒级结构研究方法进行了初步比较 ,以期为较准确研究浮游植物的粒级结构提供科学依据。
2) grain-nesting structure
粒级嵌套结构
3) size structure
藻类粒级结构
1.
Effects of size structure and pigment composition of algal population on phytoplankton absorption coefficients in the South China Sea;
南海北部藻类粒级结构及色素成分对浮游植物吸收系数的影响
4) PBAA
纳米级硅酸盐结构微粒
1.
Studies on Effectiveness of Nano-silicate (PBAA) in Eliminating Feed Lead and Its Mechanism in Pigs;
纳米级硅酸盐结构微粒（PBAA）驱除猪饲料铅效果及其机理研究
5) particle structure
粒子结构
1.
The major factors which affects the particle structure of the cracking resin emulsion are analyzed with the transimission electron microscope,the relationship about the structure,the property and the application effects of emulsion particles are discussed.
本文利用透射电镜分析了影响龟裂树脂乳液粒子结构的几个主要因素，探讨了乳液粒子结构与其性能及应用效果的关系，同时，对国内外龟裂树脂乳液粒子结构进行了比较。
6) grain structure
晶粒结构
1.
The factors affecting the quality of phosphorized copper anode used for acidic copper electroplating were discussed, including materials, grain structure, phosphorous content and cleaning of anode surface.
主要探讨了影响电镀铜用磷铜阳极质量的因素,包括原材料、铜晶粒结构、磷含量及阳极表面的清洁。
2.
The comparison shows that the thermal etching carried out at a temperature lower than the sintering temperature can obviously reveal the grain structure of Al_2O_3 matrix.
比较表明，在低于烧结温度约１５０℃下进行的热腐蚀能够清晰地揭示基质Ａｌ２Ｏ３的晶粒结构，并且与化学的效果不同，保留了金属相粒子。
3.
The grain structure,the crystallographic orientation and the grain boundary character of Al interconnects were measured by using electron backscatter diffraction technique.
采用电子背散射衍射技术(EBSD),测量了微电子器件中A l互连线的晶粒结构、晶体学取向和晶界特征。
补充资料：中粒级
翡翠粒度粗细的第三等级，其特点是硬玉晶粒的直径为1mm至3mm，半透明至微透明，翠性明显，该级别翡翠为抵挡翡翠。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条