该方法既适于自治系统又适于非自治系统.Above method can be applied to both autonomous system and nonautonomous system.研究具有年龄结构的非自治的SIS模型.In this paper , we study a nonautonomous SIS model with age structure.研究了一类利用线性状态误差反馈控制方法耦合的非自治悬臂振动系统的全...
The extractions of glutenin and gliadin from vital wheat gluten were investigated.以谷朊粉为原料,提取了麦谷蛋白和麦醇溶蛋白.The protein content of wheat is and wheat proteins mainly contain gliadin and glutenin.小麦蛋白质的含量为12.1%,主要是麦胶蛋白和麦谷蛋白....
接穗的基部被切成斜形,暴露出椭圆形的大圈形成层.The base of scoin is cut diagonally to expose a large oval of cambium.必须把所需品种的接穗用芽接或枝接的方法嫁接在选定的根砧上.It is necessary to bud or graft wood of desired varieties into selected roots.然后将接穗插入砧木切口紧密贴合.The...