A comparative heap dump analysis takes two heap dumps, baseline and primary, and compares their differences.
比较性堆转储分析使用两个堆转储，也就是基准和主堆转储，并比较其差异。
2
When a request comes from a user to dump the data, each thread takesa lock and dumps it to a central place.
当收到来自用户的转储数据的请求时，每个线程获得一个锁，并将其转储到中心位置。
3
He has become their unofficial science teacher and takes them on unusual field trips to places like a toilet-paper plant, an aircraft carrier, and even the city dump for Seattle's East Side.