- 推荐网络例句
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Objective: To explore the effect of phytic acid on apoptosis of human gastric carcinoma SGC-7901 cells and its mechanisms.
目的：研究植酸对人胃癌SGC-7901细胞的凋亡诱导作用及其机制。
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A scheme of self-learning control of nonlinear inverse system based on multi-layer feed-forward BP network is presented.
引言在传统的系统控制方法中，被控系统的动态特性是以传统的数学模型进行描述的。
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Methods:total alkaloids of radix Sophora lavescens were extracted by acidified water,then adjusted to neutral by sodium hydroxide solution, dissolved with buffer solution,then were mixed with 0.025％ of bromothymol solution and chloroform,and then the mixture was shaken,standing and demixed,the absorbability of chloroform layer was detected at the wavelength of 413nm.
将苦参的酸水提取液用氢氧化钠溶液调节至中性后，依次加入pH=7.6缓冲溶液，溴代麝香草酚蓝指示液、氯仿混合振摇，静置分层，于413 nm波长处测定氯仿层吸收度。
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