核心词议：
substrate 基本解释
n. （有机体的）培养基；<生>酶作用物；（供绘画、印刷等的）底面；印刷里指承印物
速记方法
知识扩展
中文词源
substrate 底层，基底
sub-,在下，-strat,地层，岩层，词源同 strategy,structure.
中文词源： substrate 底层，基底 sub-,在下，-strat,地层，岩层，词源同 strategy,structure. substrate
精选例句
常见考点例句：
- Given proper environment and substrate , they grow !
- 给以适当的环境和基质后，它们又生长了！
- Study on soilless culture and substrate formula of strawberry .
- 草莓无土栽培方式及基质配方研究。
- Being small helps , but it 's also important that the silicon is laid out in a serpentine pattern and bonded to a soft rubber substrate , allowing the stiff material to flex , a little bit like an accordion .
- 设计小巧很有用，但将硅网设计成蛇形图案并粘贴于软橡胶基质上也很重要，这使得硅这种硬材质可以灵活弯曲，有点像手风琴。
- Soil enzyme activity was mostly affected by substrate concentration .
- 土壤酶活性主要受底物浓度变化的影响。
- Protein engineering and site directed mutagenesis have been used to change the active site and alter the substrate specificity of various hydroxynitrile lyases .
- 研究人员已经利用蛋白质工程和定点突变技术来改变各种醇腈酶的活性位点和底物特异性等。
