20d

After 20d , the entire response system is already in stable state .

研究发现，在驯化20d后整个反应系统已处于稳定状态。

The best screening time is 20d after seeds sowed on the culture medium .

筛选的的最佳时间是从培养基播种后第20天开始。

The first stage was aerobic static bed of composting based on temperature feedback and control via aeration rate regulation , which lasted about 20d .

采用自制的静态好氧床进行一次发酵，过程控制采用温度反馈通气量控制方法，发酵周期20d；

When the SRT is a common 20d , the heat release is 104.59kJ/mol e - .

当SRT为常见的20d时，放热量为104.59kJ/mole-。

Space flight showed that breeding of the insects , respiratory metabolism of the seeds and the life activity were normal in the sealed environment for 20d .

经空间飞行实验证明：在长达20d的密闭环境中，生命活动正常，昆虫繁育和种子呼吸代谢等均未受影响，舱载离心机在失重时自动启旋。

Its hatching was inhibited after stored at 4 ℃ . After 20d stored at 4 ℃, the hatching rate was only 23.02 % .

4℃冷藏处理对卵孵化具有抑制作用，在处理20d后，卵的孵化率可降到23.02%。

20d after transplanting , ammonium concentration detracted under 10 % of NH4 + + NO3 - 10 % of ASN treatment .

施用NH4NO3的处理土壤中铵态氮的含量在移栽后15天降低到两者之和的10%以下；

The end point of FCC naphtha has been adjusted to lower than 185 ℃, and CC 20D ( LY ) catalyst has been used in FCC for increasing diesel fuel production .

催化裂化装置压低汽油干点至185℃以下；使用CC-20D（LY）增产柴油催化剂。

Relative conductance responded to salt treatment appeared the same trend with free praline and SOD activity , and under 2.5 times salt concentration on 20d , relative conductance was significantly higher than CK ;

相对电导率呈现明显的上升趋势，其中在2.5倍盐碱胁迫液处理20天时应试树种的相对电导率均明显高于对照；

When the number of days with drought ( the late part of June to July ) is greater than 20d , the soil moisture is less than 30 % , the production of peanut was poor .

当春花生在6月下旬～7月出现持续无透雨天数>20d，且耕作层土壤相对湿度达30%以下时，将影响花生子粒膨大，造成减产。

Methanogenic-phase start-up in 20d , average removal rates of COD is 86.7 % , the volume loading rate is 4.5 kgCOD / ( m ~ 3 · d ) .

产甲烷相启动20天后COD平均去除率为86.7%，平均容积负荷为4.5kgCOD/（m~3·d）。

In experimental groups of 20d , the number of nNOS positive cells was reduced by MT and had positive correlation with the levels of serum testosterone and negative correlation with the number of TUNEL positive spermatogenic cells .

20d实验小鼠中睾丸间质nNOS阳性细胞数与对照组相比明显减少，且与睾酮浓度呈正相关，而与TUNEL阳性生精细胞数呈负相关。

T4 combination of fungus at a temperature of temperature of 32 ℃, pH3.0 , solid-state fermentation time 20d , substrate quality bamboo culture medium with 110 % the percentage of the most efficient degradation of lignin .

T4组合菌在温度为温度32℃、pH3.0、固体发酵时间20d、培养液与竹材基质质量百分比110%时降解木质素的效率最高。

Results showed that the grain filling rate were faster in prophase and metaphase of filling stage than anaphase , when the date of average temperature preponderate ranges 27.9 ℃ to 29.8 ℃ after heading stage 20d .

结果表明：优质食用稻籽粒灌浆后20d日平均温度在27.9￣29.8℃时，籽粒灌浆前、中期速度快，后期速度慢，整精米率相对较低；

After 20d biodegradation , in the co-addition group of PDB and centrifuged surfactant culture , petroleum degradation rate in the simulated seawater can achieve 72 % , and 78 % in the freshwater .

联合投加石油降解菌（PDB）和表面活性培养液的试验表明，20d后，能降解模拟海水中72%的原油；淡水中原油的降解率达78%；

Run results showed that CC 20D was featured by capacity of considerably increasing diesel oil production , strong resistance to contamination and good selectivity to product , while CA 100 catalyst exhibited strong capacity for enhancing octane number and LPG yield .

结果表明CC-20D具有增产柴油效果明显、抗污染能力强、产品选择性好等优点；CA-100提高辛烷值和增产液化气能力强。

Upside of each processing respectively leaf enters suitably picks time number of days is 87d , 107d , 116d , depends the ripe number of days is 6d , 20d , 24d ;

上部叶进入适采期天数各处理分别为87d、107d、116d，耐熟天数为6d、20d、24d；

The number of the discharged patients in 15d , 20d in the acupuncture treatment group and the control group were no evident difference over the average hospitalized days , and there was no significant statistical difference ( P > 0.80 、 P > 0.05 ) .

超过平均住院天数，15天、20天出院人数前者与后者差别不大，差异无显著性（P>0.80、P>0.05）。

Perilla hypocotyl explants inoculated on solid medium were cultured firstly in the dark for 10 days , then transferred to train under 10 h / d light condition at 24 ℃ . The time of subculture circle was 20d / Generation .

确定了最适愈伤组织诱导培养条件：紫苏下胚轴外植体在接种到固体培养基上，暗培养10天后转入10h/d光照条件培养，培养温度24℃，愈伤继代周期20d/代。

Studying on potted plants of T_0 under drought conditions , we concluded that during 20d drought stress , drought-injure index of control line was up to 52.27 % while it was only 30.56 % ~ 46.67 % in transgenic lines .

对转基因烟草T0代盆栽苗分别进行干旱胁迫试验显示：在20d干旱胁迫条件下，非转基因烟草对照的旱害指数达到52.27%，转基因株系的旱害指数仅达到30.56%～46.67%。

Based on the indoor experiment the result was showed as follows : when 10-day AA chickens were inoculated , the positive rate of antibody and the protective rate from attack of hardy virulence of serum AGP were 100 % after 20d and 50d .

室内试验表明，对10日龄AA肉鸡接种后，20、50d血清AGP抗体阳性率和对强毒攻击的保护率均达100%；

Our findings suggest that : 1.Rats administrated with low dose of rotenone for 20d , the content of rotenone in striatum is 3.31ng / g , and remaining 0.7 to 0.9ng/g for 4 to 8 h.

本研究发现：1.大鼠接触小剂量鱼藤酮20d，纹状体内鱼藤酮含量高达3.31ng/g，4～8h仍维持在0.7～0.9ng/g，消除速率较慢。

In the sows positive rates of antibody were 100 % , 96 % , 85 % and 76 % , respectively at postpartum 10d , 20d , 30d and 40d . The sows with the higher birth , got higher level of antibody .

产后10d、20d、30d和40d的母猪的抗体阳性率分别为100%、96%、85%和76%，胎次越高，抗体水平也越高。

The Se content in serum of add Se Cu group did not change ( P > 0.05 ), GPX-Px activities of this group significantly increased ( P < 0.01 ) from 20d to 30d , and did not change ( P > 0.05 ) from 40d to 60d .

加硒铜组血清硒含量差异不显著（P>0.05），该组的GSH-Px活性先上升，在20～30d差异极显著（P<0.01），在40～60d差异不显著（P>0.05）。

At present , fresh-cut fruits and vegetables to maintain fresh-life is commonly 7d , 10d , 15d , the longest life was 20d . In the experiment fresh-cut grape can store about 75d . Therefore this experiment is successful , and the method is feasible .

目前，鲜切果蔬保鲜期一般为7d、10d、15d，最多的不超过20d，本试验鲜切葡萄保鲜期达到75d左右，因此该试验是成功的，方法是可行的。