查询词典 unstableness

Through an introduction to the reaction principles and technical process of Ni-P chemical plating, and the investigation and analysis of anti-corrosive processing faults of Ni-P plating on the down-hole tool of present oilfields, some exact reasons are found out which causes the unstableness of anti-corrosive processing quality on down-hole tools.

对Ni-P化学镀的反应原理和工艺流程作了介绍，对当前油田井下工具的 Ni-P镀防腐处理故障情况进行了调查分析，找出了井下工具防腐处理质量不稳定的具体原因，并提出了提高施镀基面的精度要求等相应的改进对策。

AOX is a member of di-iron carboxylate proteins. Two structural models exist for AOX and the latest one is a monotopic protein instead of span membrane. Relatively little is known about its 3-dimensional structure. Main reason is that the sufficient quantities of AOX suitable fur crystallogram structural studies is unavailable because of its unstableness.

AOX是首次发现的双铁羧酸蛋白质成员中的膜蛋白质，AOX与膜分离后容易失活，至今尚未有三级结构的报导，只有二级结构的2种假设模式，最新的模式AOX为膜界面蛋白质而不是跨膜蛋白。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。