We calculate the residence time and environmental capacity of Cd element in the soil-water-paddy-atmosphere system.
根据马尔可夫链模型,定量地探讨了湖南省洞庭湖区农田生态系统中Cd的迁移转化问题,计算了Cd在土壤-水-稻谷-大气系统中的滞留时间和环境允许量,进而探讨了系统的生态承载力,得到系统中Cd的最大允许排放量CdA与生态承载力M人口之间的关系式:CdA=3。
The infiltration of carbon fiber preforms was studied by microwave pyrolysis chemical vapor infiltration technique,CH_4 as the carbon source gas,and N_2 as diluent gas,at 1100℃and methane partial pressure of 10kPa with residence time of 0.
以炭毡为预制体,N_2为稀释气体,甲烷为炭源前驱体,其分压为10kPa,沉积温度为1100℃的工艺条件下,研究了不同的气体滞留时间(0。
7%,and infiltrated by the novel ICVI at ambient pressure and 1100℃,residence time of 0.
采用改进后的新型ICVI工艺,在沉积温度1100℃、沉积压力为常压和滞留时间为0。
It can play a synthetic role including phy- sically,chemically and biologically in delaying the retention time of water intothe pre-dam,reducing the flow speed and homogenizing flow field, purifying thewater and damming the silt and nutrient salt in pre-dam for the purpose ofreducing the content of nutrient salt and inhibiting the ove.
于桥水库库前区墙截老河道入口，形成一个近９ｋｍ￣２，容积达２０００万ｍ￣３～２５００万ｍ￣３的前置库，可充分发挥其物理、生物、化学的综合作用，延长入流水在前置库区的滞留时间，降低流速，均化流场使入流水在前置库区得到净化，大量的泥沙及营养盐截留在前置库区，从而使进入主库的营养盐含量大幅度降低，抑制主库中藻类的过度繁殖，起到防治或减缓于桥水库富营养化的作用。
The effect of retention time on rotifer distribution was also analyzed in three reservoirs: Feilaixia Reservoir, Liuxihe Reservoir and Xinfengjiang Reservoir with different retention time from 2001 to 2003.
在此基础上,于2 0 0 1～2 0 0 3年研究了滞留时间对飞来峡水库、流溪河水库和新丰江水库三座典型水库(平均滞留时间分别为14 d、172 d和6 4 4 d)轮虫分布的影响。
The letrozole's kinetics parameter of percutaneous permeation and the evaluation of the lag time method
来曲唑的经皮扩散动力学参数及其滞留时间法评价
,carbon residence time) of a terrestrial ecosystem model (TECO) by using biometric and eddy covariance flux data measured at a temperate broad-leaved Korean pine forest in Changbai Mountain (CBS) of China from 2003 to 2005.
该研究以2003～2005年长白山阔叶红松林的6组生物计量观测数据和涡度相关技术测定的碳通量数据为基础,利用马尔可夫链-蒙特卡罗方法对陆地生态系统模型的关键参数(即碳滞留时间)进行了反演,进而预测了长白山阔叶红松林生态系统碳库、碳通量及其不确定性。
dwelling time control
定形时间控制,滞留时间控制,
A Study on Factors Affecting the Staying Time of In-floating Population in Beijing;
北京市外来人口滞留时间的影响因素分析
Staying Time of Floating Population in Beijing and Its Impact Strength;
北京流动人口滞留时间及影响强度分析
Calculation on Residence Time of Solution in Concentrating and Crystallizing Equipments
溶液在浓缩和结晶设备中滞留时间计算
Estimate of Return Migrants and Their Average Stayed Period--Analysis on two Surveys in 1987 and 1988;
返迁人口及其平均滞留时间的估计——基于1987和1988年两次调查的分析
The letrozole's kinetics parameter of percutaneous permeation and the evaluation of the lag time method
来曲唑的经皮扩散动力学参数及其滞留时间法评价
Chemical evolution of shallow groundwater and the residence time in the Ejina Basin
额济纳盆地浅层地下水演化特征与滞留时间研究
Microstructure and Fabrication of C/C Composites at Super-short Gas Residence Time
超短气体滞留时间制备C/C复合材料及其组织研究
Most often, a holding tube has a known-diameter pipe designed to provide an established residence time for product at the pasteurization temperature.
通常保温管是一个已知直径的管。用于给到达巴氏杀菌温度的产品提供指定的滞留时间。
Secondly, the Os concentration and residence time in seawater, and Os isotope composition of seawater were precisely measured.
②对海水中锇的浓度、滞留时间 ,以及现代海水的锇同位素组成进行了精确测定 ;
The detention time in the tank is between 1.5 and 3 hours.
池中滞留的时间为1．5到3小时之间。
A place for the temporary detention of prisoners.
犯人候审大房间供犯人临时滞留的大房间
Fixed a few issues that could allow spell effects to stick around long after the effect has ended.
修正了一些使施法效果长时间滞留的问题。
Detention of a ship, freight car, or other cargo conveyance during loading or unloading beyond the scheduled time of departure.
（运输工具）滞留，延期船、货车或其他运输工具在装卸货物期间超过了规定的离开时间而滞留
duration of dispause
滞育时间，滞育期(指昆虫)
Travelers at the Denver airport will have to wait at least one more day before they head out.
丹佛机场的乘客们在出发前将至少滞留一天的时间。
detention of a ship or freight car or other cargo beyond its scheduled time of departure.
船或运货车厢或者其他船货超过了预定时间的滞留。
free gas space in column
柱中游离气体空间(气体滞留)