您正在服用的每周LA257以欧辛塞德的赫兹场。
本试验以欧李当年生嫩枝上带有腋芽的茎段为外植体进行离体组织培养，获得了正常的再生植株。
The stem segments of Cerasus humilis Bunge with axillary bud were used as explant in this experiment and the natural regenaration plants were obtained in vitro culture of explants.
依据基本物理定律，建立电站锅炉热力系统典型环节的动态数学模型并形成系统设备模块库，以欧拉法求解。
The dynamic mathematical model of typical parts of generating boiler is set up according to basic physical laws, the modular library of system equipment is produced by Euler method.
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