large seed

It is a resynthesized large seed B.

人工合成甘蓝型大粒材料H484千粒重平均6 21g,最高达7 81g,花粉生活力为82 4%。

This study provides a method for the preparation of high concentration silica sol of large particle size.

介绍了一种制备大粒径、高浓度硅溶胶的工艺方法 ,研究了硅溶胶生产中影响纳米二氧化硅粒径的增长因素。

Recovery device for coarse gold and its application;

大粒金回收装置及其应用

By the large comprehensive test in situation, the mechanism of consolidation, the mechanics of consolidation, the mechanics parameter and test methods of large sized gravel pile are discussed.

碎石桩是快速提高地基稳定性的有效手段 ,大粒径碎石桩将碎石桩的适用范围扩大到了 8～ 15 k Pa的软土。

For chemical mechanical polishing of ILD(Interlevel Dielectric) in ULSI, the silica sol nano-abrasive with large particle was strongly required because of lower polishing rate.

针对超大规模集成电路多层互连结构中介质 CMP抛光速率低 ,急需的大粒径硅溶胶研磨料 ,本文采用改进的粒径生长控制工艺制备介质 CMP用大粒径硅溶胶 ,并采用 TEM、激光粒度分析仪和 Zeta电位测试仪等先进手段对其粒径大小、粒径分布和稳定性进行了表征。

Experiment results show that,in order to facilitate concrete strength development,when lowering the concrete water to binder ratio,coarse aggregate with smaller maximum size should be adopted,and vise verse.

试验结果表明:从提高混凝土强度的角度,随着混凝土水胶比的降低,其胶凝材料用量增大,同时,宜采用最大粒径较小的粗集料,反之亦然。

By analyzing the relationship between the maximum size,structural course thickness and the mix- ture performance of bituminous mixture,this article tested the porosities and performance of several kinds of bituminous mixtures with different thickness,and pro- posed some feasible suggestions.

本文通过分析沥青混合料的最大粒径、结构层厚度与混合料性能之间的关系,对几种不同厚度的沥青混合料的空隙率及其性能进行了测试,提出一些可行性建议。

Large-Stone Asphalt Mixes (LSM) is framework-dense structure.

大粒径沥青混合料属于骨架 -密实结构 ,通过试验分析证明该结构比悬浮 -密实型空间结构具有更好的强度和耐久性 ,用作路面面层 ,可承担大交通量、重轴