To make soap, you need 3 main things: oil, water and lye.要自制肥皂, 你需要3样主要原料: 油 、 水和碱液.To make soap, you need three main things: oil, water and lye.要生产肥皂, 需要三种主要材料: 油, 水和碱水.Some people make soap will potash with potash lye....
Charles Babbage & Ada Byron ( Lady Lovelace ) worked on programmable mechanical calculating machines.CharlesBabbage 和adaByron发明了可编程的机械式计算器 ( 差分机 ).Then in 1822 I was built as an Analytical Machine by Charles Babbage.后来到1...