According to experimental data, he also puts forward the calculating method and practical calculation formula of the concrete quasi-compressive resistance on the basis of the early ripeness of concrete and the speed of elastic waves.
本文对大直径混凝土灌注桩质量早龄期动力测量的可能性,测试方法,桩身混凝土的成熟度计算进行了探讨,并根据试验资料提出了依据早期混凝土成熟度、实测弹性波速推算混凝土准抗压强度的方法和实用计算公式。
The Characteristics of Fertility in Anthropogenic Mellowing of Three Parent Material Raw Soils in Red Soil Area under Long-Term Fertilization
长期施肥下红壤地区三种母质土壤熟化过程中肥力的变化特征
Latent Environmental Effect of Heavy Metals from Stabilized Sewage Sludge by Fly Ash:An Incubation Study
钝化污泥人工土壤熟化过程中重金属的潜在环境效应研究
First, the grapes are grown in soil that has been tended over hundreds of years to produce the best vines.
首先，种植葡萄的土壤经过上百年的熟化，以长出最好的葡萄。
identification of podzols and podzolised soils
鉴定灰壤土和灰化土
Study on Stabilization of Soils with Enzyme X-22 and White Lime-Fly Ash;
用坚土酶和熟石灰粉煤灰加固土壤的研究
Effects of Leaf Extracts of Zanthoxylum Bungeanum and Soil Extracts on Soil Microbes, Enzyme Activities and Chemical Property;
花椒叶和土壤浸提液对土壤微生物、土壤酶及土壤化学性质的影响
Study on the Relationes between Soil Hexavalent Chromium and Soil Biochemically Activity;
土壤Cr（Ⅵ）与土壤生化活性关系研究
Effect of soil moisture on aroma and main chemical compositions in mature stage flue-cured tobacco leave
烤烟成熟期土壤水分状况对烟叶挥发性香气物质及主要化学成分的影响
Spatial and Temporal Variation of Soil Available Potassium in the Field of Wheat-rice Double Cropping;
稻麦两熟农田土壤速效钾时空变异及原因分析
Studies on Effect of Soil Tillage and Straw Returning to Field in Multi-Cropping Paddy Field
多熟复种稻田土壤耕作和秸秆还田的效应研究
Soil fertility evaluation in the Lake Dongting region,Hunan Province,China
洞庭熟,天下足:湖南省洞庭湖地区土壤肥力评价
Effects of soil mechanical resistance on root growth characteristics of kentucky turfgrass(Poa pratensis L.)
土壤机械阻力对草地早熟禾根系生长的影响
The Effects of Land Use Change on the Soil Organic Carbon and the Soil Respiration;
土地利用变化对土壤有机碳和土壤呼吸的影响
Research on Soil Enzyme Activities and Soil Nutrients in Different Types of Farmland in Salinization Fluvo-aquic Soil
盐化潮土不同农田土壤养分和土壤酶活性研究
soil extract's chemical compositio
土壤浸提的化学组分
biological purification of soil pollution
土壤污染的生物净化
soil redox potential of paddy field
稻田土壤氧化还原电位
soil chemical reaction kinetics
土壤化学反应动力学