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1)  maximum cement diameter
最大水泥颗粒直径
2)  particle diameter
颗粒直径
1.
On the basis of equal specific interfacial areas, an equivalent particle diameter is brought forward and the thermal conductivity of dual-sized particles reinforced aluminum matrix composites is calculated.
在等比表面积的基础上,提出了等效颗粒直径的概念,解决了两种粒径颗粒混合增强铝基复合材料导热率的预测问题。
3)  large-diameter slurry shield
大直径泥水盾构
1.
Based on the shield boring of the exit section of Shiziyang tunnel on Guangzhou-Shenzhen-Hongkong passenger-dedicated railway,the authors present the selection and optimization of the boring parameters,the control measures,boring process,difficulties and the countermeasures of the large-diameter slurry shield in water-rich soft ground with shallow cover.
结合新建广深港铁路客运专线狮子洋隧道工程出口段的盾构施工,介绍富水软弱地层浅埋大直径泥水盾构掘进参数选择与优化、控制措施、施工过程及重难点、常见问题及处理措施。
4)  cement particle
水泥颗粒
1.
Study was mainly centered on characteristics of cement particles under the force, sedimentation motion and sedimentation characteristics of cement particles, effects of superplasticizer type and dosage, cement paste W/C ratio, environment temperature on apparent sedimentation velosity of cement particles.
主要研究水泥浆悬浮液体系中水泥颗粒的受力特点、水泥颗粒的沉降运动及其特点和超塑化剂品种、掺量、水泥浆水灰比、环境温度等对水泥颗粒表观沉降速率的影响。
5)  LDL size
LDL颗粒直径
1.
Multiple linear stepwise regression analysis was applied to detect the influential factors of LDL size.
目的探讨新诊断2型糖尿病患者的血脂谱及低密度脂蛋白(low density lipoprotein,LDL)颗粒直径的特点,分析LDL颗粒直径的影响因素。
6)  PM diameter
颗粒物直径
1.
Moreover,the concentration of SOF and DS,the mass concentration of PM in emission and the distribution of PM diameters were studied.
着重阐述了燃油中硫含量与排放颗粒物直径和浓度的关系。
补充资料:颗粒特性直径
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性质:用某种圆球直径来表示非球形颗粒的外形尺寸,称为特性直径,或当量直径(equivalent diameter),常用三种表示方法:(1)若颗粒的体积为Vp,按等体积的圆球直径计算的颗粒特性直径,dp=(6Vp/π)1/3(2)若颗粒的外表面积为Sp,按等外表面积的圆球直径计算的颗粒特性直径,;(3)若颗粒的比外表面积为Sv,按等比外表面积计算的颗粒特性尺寸,ds=6/Sv=6Vp/Sp。ds和dp两种表示方式常用于颗粒床层流体力学研究,而Dp常用于颗粒床层中流体与颗粒外表面间的传热和传质研究。 

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