查询
1 词典释义:
concentration gradient
时间: 2025-07-26 16:33:04
英 [kɒns(ə)nˈtreɪʃ(ə)n ˈɡreɪdɪənt]
美 [ˌkɑnsənˈtreɪʃ(ə)n ˈɡreɪdiənt]

浓度梯度;浓度差;溶液浓度梯度

双语例句
  • Salts are enriched around electriferous groups of polymer molecules in solution, which formed a salt concentration gradient.

    溶液中的盐份富集在聚合物分子的带电基团附近,并形成盐浓度梯度分布。

  • The variation of methane concentration gradient was greater.

    甲烷浓度的梯度变化比较大。

  • The movement of a solute down its concentration gradient is called diffusion.

    溶质沿着浓度梯度溶解的运动过程被称作分子扩散运动。

  • (chemotactic movement) a TXIS in response to a chemical concentration gradient.

    趋化现象:一种对化学浓度梯度的趋化反应。

  • The reaction rate is limited by the concentration gradient of oxygen in the sample.

    反应速率受试样中氧浓度梯度的限制。

  • The change of the mass concentration gradient of uranium metal is obviously regular.

    铀金属质量浓度梯度变化规律明显;

  • This sets up a chemical concentration gradient that tells stem cells how and where to develop.

    形成化学浓度梯度,告诉干细胞如何以及向哪儿发育。

  • Objective To explore the effects of SLC concentration gradient on suppression of tumor immune escape.

    目的探讨人次级淋巴组织趋化因子浓度梯度对肿瘤细胞免疫逃逸的影响。

  • The process does not require energy expenditure, and transport against a concentration gradient does not occur.

    这种转运过程不消耗能量,也不会导致逆浓度梯度转运的发生。

  • So large ranges of concentration gradient were formed where the water masses displaying different properties met.

    因此,当不同理化特性的水团交汇时形成了强的浓度梯度。

  • Extraction velocity had a relation with interface areas, concentration gradient of solute and the status of fluid kinet...

    萃取速率与相界面积、两相中的溶质浓度差和滴内流体力学状态有关。

  • The second, the flame shape and color were determined by the concentration gradient of the place near the igniting position.

    其次,火焰的形状和火焰的颜色是由点火位置附近的浓度梯度决定的。

  • The invention discloses a method for converting free energy stored in an ion concentration gradient form into electric energy.

    本发明公开了一种将以离子浓度梯度形式储藏的自由能转化为电能的方法。

  • Expressions for interdiffusion coefficients were derived in the literature, but they are all based on the concentration gradient.

    关于二元合金互扩散系数的表达式,虽然有过推导,但是在推导过程中都是以扩散组元的浓度梯度为出发点。

  • Mobile charged carriers migrating to the cold side to create a carrier concentration gradient thus giving rise to a thermoelectric voltage.

    移动的载流子迁移到冷端后会形成载流子浓度差,从而在材料两端产生热电电压。

  • Method the main influential factors were detected by PCR in serial concentration gradient and electrophoresis, then select the optimal experimental conditions.

    方法对实验研究中的主要影响因素设置各系列浓度梯度,进行PCR反应后观察电泳结果选取最适条件。

  • Methods: Cytotoxicity of manumycin was determined by MTT assay, and cytotoxicity of the other drugs alone was determined using the half concentration gradient design.

    方法:细胞毒测定以MTT法; 单药细胞毒测定以半倍浓度梯度设计;

  • We may assume that there is no correlation between the local velocity of a liquid particle at a mathematical point inside the void space and the concentration gradient.

    我们可以假定,在空隙空间的一个数学点上液体质点的局部速度和浓度梯度之间无相关性。

  • When the weak acid is given orally, the concentration gradient for un-ionized drug between stomach and plasma tends to be large, favoring diffusion through the gastric mucosa.

    当这种弱酸性药物经口服给药时,胃与血浆之间的非解离型药物浓度梯度很大,从而有利于透过胃粘膜扩散。

  • The boundary layer is characterized by a concentration gradient of the oxidized ion. Diffusion of the reducing agent ion through the boundary layer controls the REDOX reaction.

    边界层的特征在于被氧化离子的浓度梯度,还原剂离子的扩散通过边界层控制了氧化还原反应。

  • The dependence of breakdown voltages of the thin film SOI devices on the concentration gradient in the linearly doped drift region is experimentally investigated for the first time.

    首次对薄膜SOI功率器件的击穿电压与线性掺杂漂移区的杂质浓度梯度的关系进行了实验研究。

  • Active transport The use of energy to move a solute across a membrane against a concentration gradient, a potential gradient, or both (electrochemical potential) . Uphill transport.

    主动吸收:亦称代谢吸收。指细胞直接利用能量做功,逆着电化学势梯度吸收离子的过程。

  • The result showed that the co 2 flux and co 2 concentration gradient as well as the water use efficiency of the summer corn community had distinct daily and seasonal change patterns.

    结果表明,夏玉米群体二氧化碳通量、二氧化碳浓度差及群体水分利用率存在明显的日、季节变化规律。

  • Based on the gradient dilution technique of FIA, a new standard addition method is established. Concentration gradient can be formed by injection of only one single standard solution.

    根据FIA梯度稀释技术建立了一种新的标准加入方法,只需要注入一种标准溶液,就能形成浓度梯度。

  • The effects on the underwater sound attenuation by the thickness and concentration gradient of polymers were measured in a sound tube at different frequency during the polymers dissolution process.

    文中详细研究了梯度高分子溶液在不同频率下,聚合物厚度及梯度结构的变化对反射声衰减效果的影响。

  • And that told us that the flow is proportional to a negative gradient of a concentration.

    这告诉我们,流动是和浓度的负梯度成比例的。

  • The selection of moving phase, gradient eluting procedure and line relation of sampling concentration with peak height were discussed.

    研究了流动相的选择,梯度淋洗程序的最佳化以及进样浓度与峰高的线性关系。