Retardation time

Besides , the authors put forwards the index of the retardation time for the surface subsidence firstly , which can be used as numerical indicator for mining subsidence areas .

提出地表下沉推迟时间tr的概念，可作为划分开采沉陷剧烈程度的量化指标。

In the end , the author also calculates the thermal retardation time of the concrete slab cooling system and capillary cooling system when the supply water temperature in the step change condition .

得出了供水阶跃变化条件下，标准结构的楼板式冷天花和毛细管式冷天花的热滞后时间。

Effects of flour type and dough retardation time on the sensory characteristics of pizza crust

面粉类型及面团延时对比萨饼外皮感官特性的影响

CO2 emission amount tended to change similarly with the temperature , but had a retardation time .

土壤CO2释放量的变化与温度的变化趋势基本一致，但时间上有一定的滞后，释放量白昼低于夜间。

The retardation time of fuse in one kind of anti-air missile is given according to different brackets in different groups , however the specific retardation time of fuse is designed according to typical target .

某型防空导弹引信采用分组分档延时控制方式，延时参数根据典型目标设置。

Among them , azone was the best one and the skin penetration amount of FA was increased by 10 times . But the retardation time of azone was the longest , about 9 hours .

月桂氮酮作用效果最强，可以将阿魏酸透皮扩散性能提高10倍左右，但滞后时间长，约9个小时；

Finally , author deals with the response relationship between water yield in the mine and precipitation in past 31 years used frequency analysis of time series and reach a conclusion that the retardation time between water yield and precipitaion is 6 days .

最后应用时间序列分析频谱方法研究了31年来矿井涌水量对降雨量的响应关系，即全矿涌水量滞后于降雨6d。

The performances of composite paint film adding 1.0 % modified nanometer barite were improved largely , the T-bending was improved from 4T to 2T , and the corrosion resistance increased 20 % with its retardation time from 720 ~ 1096h before showing blisters .

纳米重晶石添加量为1.0%时，涂层性能有较大的提高，T弯从4T改善到2T；耐盐雾时间也由720h增加到1096h，提高了20%以上。

It was concluded that strengthening perinatal care , improving prenatal diagnosis techniques , finding and treating intrauterine growth retardation in time , preventing premature delivery and intensifying systematic care management for high danger risking pregnancy were important ways for reducing the incidence of LBWI .

从而认为，加强围产期保健、提高产前诊断技术、及时诊断胎儿宫内发育迟缓并积极治疗、预防早产及加强高危妊娠的系统化管理，对降低LBWI的发生率有重要意义。

Retardation of deformation time ;

变形时间的滞后性；

Parent goldfishes were exposed to 1,000 rontgen of X-ray irradiation . The following results were obtained for the embryonic development : 1 . decreased rate of fertilization and hatching ; 2 . retardation of hatching time ;

成熟金鱼受1000伦琴X射线照射后，所产的卵降低了受精率及孵化率，延长了孵化时间。