potato have commercially released ,Yhis article reported the advances om the study of improvement of rice through gene engnieering including improvement of the resistance to insects ,virtus and abiotic stress etc.
本文就基因工程在水稻改良方面的研究作一简要综述，主要包括抗病虫性改良、抗逆性改良和品质性状改良等方
Test Study on the Effect of Cyclic Dry-wet Process on the Fatigue Strength of Cement-soil;
干湿循环对水泥改良土疲劳强度影响的试验研究
Research purposes:Cement and lime-improved loess are used as the backfill of the subgrade in Zheng-Xi passenger dedicated railway line,the partial compactions of cement-soil are very difficulty satisfy the design request,but its mechanics satisfied the design request all.
研究目的:郑西客运专线铁路路基采用了水泥和石灰改良湿陷性黄土填筑,在填筑工艺性试验中出现了部分水泥改良土压实度难以满足设计要求,但是其力学指标均满足设计要求的现象。
Cement-soil is an important filling material used in the railway subgrade engineering.
水泥改良土是铁路路基工程中重要的填料。
The cement improved soil is a kind of important fill material used widely in construction of railway subgrade.
水泥改良土是高速铁路路基工程中广泛使用的一种重要填料。
Engineering Behavior of Cement-Soil-Fill Material of High Speed Railway Subgrade;
高速铁路路基填料—水泥改良土的工程性质
The Effect of Cyclic Dry-wet Process on the Dynamic Behavior of Cement-Soil;
干湿循环过程对水泥改良土动力特性的影响
Analysis of construction technology for sub-base cement-modified soil of roadbedof passenger dedicated lines;
客运专线基床底层水泥改良土施工工艺分析
Laboratory research on properties of frost heave and thaw settlement of cement-improved Shanghai's grey-yellow silty sand
上海灰黄色粉砂水泥改良土冻胀融沉性质实验
Experimental Study on Improved Loessusing Cement for Subgrade of Zhengzhou-Xi'an Dedicated Passenger Special Line
郑西客运专线水泥改良黄土路基填料试验研究
The experimental study on strength of improved MSW
粉煤灰水泥改良垃圾土的强度试验研究
Test Study on Cement Improved Loess as the Filling Material for Subgrade Construction of Passenger Dedicated Line
客运专线水泥改良黄土路基填料填筑试验研究
Research on the Effect of Bentonite and FWFPM to Acid Soil Amendment;
膨润土和塘泥对酸性土壤的改良研究
Comparing of Physic and Chemical Property of Aeolian Sandy Soil Before and After Improvement
泥炭和腐泥改良风沙土前后土壤理化性质比较
An Experimental Study of Impacts on Underground-water in Calcareous Soil Amended with Fly Ash and Sewage Sludge;
粉煤灰污泥配施改良石灰岩质土对地下水影响实验研究
Improvement Effects of Soil Amendments on Soil Water Retention Capacity in Loessial Soil
土壤改良剂对黄绵土持水性能的改良效应研究
Effects of adding peat on amelioration of aeolian sandy soil and vegetable growth.
施用泥炭对风沙土改良及蔬菜生长的影响
Centrifugal Model Test Research of Subgrade about Red Mudstone and Its Improved Soil;
红层泥岩及其改良土路基离心模型试验研究
Study on Calcareous Soil Amelioration with Filtered Sludge of Sugar Refinery
亚硫酸法糖厂滤泥改良石灰土试验研究
Study On The Rebuilding Of Asphalt Overlay On Old Cement-concrete Pavement
旧水泥混凝土路面沥青罩面改造研究
Overview of research on crumb rubber in mortar and concrete
橡胶改性水泥混凝土(砂浆)的研究综述
Introduction on the crushed stone transformation techniques of cement concrete pavement
水泥混凝土路面碎石化改造技术介绍
THE EXPERIMENTAL STUDY ON CHANGE IN PROPERTY OF CEMENT SOIL BY ADDED ADDITIVES
外掺剂对水泥土改性效果的试验研究