hello everyone,
i am an engineer from China, desining AC units on locomotives,
i want to improve my HVAC&R English,
and hope to discuss about refrigeration technology on locomotives,
thx a lot!

btw,i have a question: what's the best method to adjust the capacity of units on locomotives?
we now use a "on-off" of compressors , but it can't be the best...

thx a lot for helping me on my english-learning.