嬗变过程是从铋原子中剥离出质子和中子，把铋原子重量降成金原子水平。
The process stripped protons and neutrons from the bismuth atoms, lowering the atoms' weight to that of gold atoms.
我以前总担心理想的公里数、逐步增加公里数的比例、休息、几次几组、重量和增重过程、锻炼肌肉、各种日程安排。着实复杂得紧。
I used to worry about the ideal mileage, percentage of increase in mileage, intervals, reps and sets, weights and progression, lifts, workouts, programs... it was very complicated.
您当然不必要使用工具的所有特性，并且大多数工具允许某种程度上的过程定制化，从重量级到轻量级的，以及两者之间的任意程度。
You certainly don't have to use all the features of a tool, and most tools allow some degree of process customization, from heavyweight to lightweight and all places in between.
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