不可逆变化

Non steady state , steady state and equilibrium state and changing regulation were discussed.

运用不可逆热力学原理，对气泡传质过程进行了理论分析，讨论了非稳态、稳态、平衡态的差异及其变化规律。

The soil urease and invertase activity effected by Hg was investigated in different fertility soils. The results show that soil urease activity、maximum reaction velocity (Vmax、Vmax/Km) and reaction velocity constant k have remarkably negative correlation with Hg concentration so that these can be used as ecological indexes of soil polluted by Hg, Km changes a little indicating that the reaction mechanism of Hg and urease is nonreversible competitive restraint. Urease of low soil fertility is more damaged by Hg than that of high soil fertility, with severe pollution at Hg concentration of 6.00 and 14.79mg/kg respectively; while invertase is less sensitive to Hg than urease. Cultural time has less influence on the relationship of soil enzyme and Hg concentration.

对不同肥力土壤脲酶和转化酶活性受汞影响进行了研究，结果显示，土壤脲酶活性、最大反应速度Vmax 、Vmax/Km和反应速度常数k与汞浓度呈现显著或极显著负相关关系，表明其可作为土壤汞污染的生态指标；米氏常数Km则变化较小，表明汞与脲酶作用机理为不可逆竞争抑制；低肥力土壤脲酶比高肥力土壤脲酶受汞毒害作用更强，当汞浓度分别为6.00和14.79mg/kg时即达到严重污染；而转化酶对汞的敏感性较差；培养时间对土壤酶与汞浓度间关系影响较小。

This suggests that delayed diagnosis and treatment of star fruit intoxication may induce irreversible cerebral changes.

这指出在杨桃中毒时，延迟诊断与治疗可能会引起脑部不可逆的变化。

Objective To investigate the changes of cell proliferation state after denervation of laryngeal adducent muscles in dog.Methods The muscles were obtained from 8 dogs with recurrent lanyrgeal nerves injured.

目的 了解犬喉内肌失神经支配后细胞萎缩和增殖状态的变化规律，对反映肌肉不可逆改变的指标进行初步探讨。

The nautre of ester bond and sedimentary medium condition control the distribution pattern of organic acid ester in strong reductional environment and water-washed oxidized crude oils. The former features higher contents both of 9, 11-Octadecadienoic acid, methyl ester and Hexadecanoic acid, showing the non-reversible hydrolysis reaction of ester bond in condition of basicity; the later features higher contents of Hexadecanoic acid and Octadeanoic acid, and lower contents of nonsaturated and side-chain acid ester, indicating the reversible hydrolysis reaction of ester bond in acid condition.

酯键的化学性质和沉积环境中介质条件，决定了强还原咸水盐湖相和淡水湖沼相经水洗氧化次生变化的原油有机酸酯的分布特征，前者9，11-十八二烯酸甲酯与正十六烷酸为主，反映酯键在碱性条件的不可逆水解过程，后者以正十六烷酸和正十八烷酸为主，烯酸和支链酸很少，反映酯键的酸性条件的可逆性水解，烯酸经氧化向正十八烷酸，正十六烷酸转化。

Morphological changes of the hydra to the hexavalent chromium pollutants consist of general shrinkage of the body and tentacles.

结果：水螅对Cr6+的形态和行为变化的普遍特点是不可逆的收缩身体和触手萎缩。

Imaging research in nude mice bearing human breast cancer exhibited that radioactivity has been accumulated in tumor site, While only slightly visualized or nonvisualized in the control group of mice.(4) Compared with the negative control group, the 〓I-EGF trial groups remarkably suppressed the growth of tumor.

〓I-EGF静脉和瘤内注射对荷瘤裸鼠有较强的肿瘤抑制作用，病理组织检查及透射电镜细胞超微结构观察发现肿瘤细胞发生一系列不可逆损害变化，而〓I或〓I-白蛋白无此作用； 6。

Due to all sorts of physical and chemical properties existed in itself, geological unit may have some adaptability changes, some of which are irreversible, caused by the changes of environment and external conditions, therefore, these unities can accumulate all kinds of information concerning the whole development process.

由于其自身的各种物理和化学性质，地质个体对外界条件和环境的变化存在适应性反应而且有的反应是不可逆的，因此这些个体在整个地质发展过程中不断的累积记录了其所在整体的整个发展过程的各种各样的信息。

In this reseach we observed the clinical symptoms induced by soman intoxication in dogs at sea level and at a simulated high altitude of 4000 metres.

梭曼是强有力的不可逆胆碱酯酶抑制剂之一，本文以犬急性梭曼中毒为模型，分别在平原和模拟4000m高原观察梭曼中毒后临床特征的动态变化。

Ejector seat levers come in two basic varieties: those that cause a significant visual dislocation (large changes in the layout of tools and work areas) in the program and those that perform some irreversible action .

弹射座椅操作杆有两个基本变形，即造成视觉分布上（对工作区和工具排列的巨大改变）重要变化的行动和造成一些不可逆改变的行动，这两类功能都应该对经验较浅的用户是隐藏的，其中后一个更危险。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。