law of retrogression是什么意思

网络释义

用法例句

Briefly presents the research achievements concerning the deterioration law of physical and mechan-ical behavior of structural materials such as reinforcements,prestressing tendons,concrete,etc under and after high temperature.

扼要介绍了高温下及高温后普通钢筋、预应力钢筋及混凝土等结构材料在物理力学性能退化规律的研究成果,为进一步研究混凝土及预应力混凝土结构的抗火性能及火灾后损伤评估与修复方法提供了部分参考资料,明确了预应力材料抗火性能须进一步研究的内容。

Neuroprotective strategies for basal ganglia degeneration;

基底神经节退行性变的神经保护策略

X-ray localization and extracorporeal shock wave treatment of knee joint degeneration;

膝关节退行性变的X线定位与体外冲击波治疗

The variation of bone mineral density and lumbar spinal degeneration;

骨密度变化与腰段脊柱退行性变

Investigation of Residual Strength Degradation of 35CrMo Steel

35CrMo钢强度退化规律的试验研究

Research on the Mechanical Properties of the Corroded Reinforcement Bar in Reinforced Concrete Structures;

钢筋混凝土结构中锈蚀钢筋性能退化规律研究

Study of Storage Performance Degeneration Rules of Solid State Relay

某型固体继电器储存性能退化规律研究

Research on the degradation rule of fatigue performance of aircraft structure under marine environment

海洋环境下飞机结构疲劳性能退化规律研究

Testing and theoretical study of undrained shearing strength of saturated loess under cyclic loading

循环荷载下饱和黄土不排水强度退化规律试验与理论研究

GROUND TEMPERATURE AND DEFORMATION LAWS OF HIGHWAY EMBANKMENTS IN DEGENERATIVE PERMAFROST REGIONS

退化性多年冻土地区公路路基地温和变形规律

Remote Sensing Image-Based Information Extraction for Land Salinized Degradation and Its Evolution in Kenli County

基于遥感图像的垦利县盐碱退化土地信息提取及其演化规律研究

A Study on Forest Structure and Function Patterns in Natural Restoration Process from Karst and Non-karst Rock Groups in Guizhou Provincial Central Mountainous Area, China;

黔中山地喀斯特和非喀斯特岩组退化森林结构与功能规律研究

Dynamic Changes of Soil Moisure on the Recultivated Ecosystem in the Loess Hilly-Gully Region

黄土高原丘陵沟壑区退耕生态系统土壤水分动态变化规律研究

Study on the Regularity of Vigor Loss During Storage And Characteristic Change of Rice Seeds

水稻种子贮藏过程中活力衰退规律及性状变化初探

Determination of Muzzle Velocity Loss by Law of Bore Wear

由炮膛磨损规律确定火炮初速减退量

Quantitative Characters and Mutual Dynamics of Several Plant Populations during Restoration Succession in Degraded Meadow in Northeastern China;

东北退化草原恢复演替过程中几种植物种群的数量特征及其协同消长规律

She found it difficult to establish a new routine after retirement.

她发觉退休后很难建立起新的生活规律。

Study on the Rapid Annealing and lts Heating and Cooling Process of Malleable Iron

可锻铸铁快速退火与升温降温规律的研究

A Method for Determining the Decrement of Muzzle Velocity of Gun Base on the Law of Bore Wearing

由炮膛磨损规律确定火炮初速减退量的方法

Study on Recrystallization Behavior of Ferritic Rolled IF Steels;

铁素体区轧制IF钢退火过程再结晶规律的研究

Study on Stand Structure Regulation of B.pervariabilis×D.Daii on Districts of Converting Farmland to Forest Engineering;

退耕还林地撑绿杂交竹林分结构规律研究

Study on Evolution Law of Recrystallization Textures in Ti-IF Steel During Annealing

Ti-IF钢罩式退火过程中再结晶织构演变规律研究