He assured us that, no matter how hard we studied, all of these chemicalequations would vanish from our memory.
他向我们保证，无论我们怎么用功，一切有机化学方程序都会从我们的记忆中消失殆尽。
2
The chemicalequations occurred in In-situ uranium leaching are deduced according to the main components of minerals and tesify that most major components have several sources.
A new method for balancing chemicalequations by matrixing was proposed. According to which several complicated chemicalequations were balanced. The advantage of this method was discussed.