solventless method

• 无溶剂法

solventless method的用法和样例：

例句

1. A single-ring benzoxazine was synthesized by solvent-free method.
   用无溶剂法合成了一种单环苯并嗪。
2. Solvent extraction method was used to extract total flavonoids from toona sinensis leaves.
   研究了溶剂法提取香椿叶总黄酮的工艺条件。