abbr.bottom 底,底部,bromotrifluoromethane 一溴三氟甲烷,三氟甲溴(灭火器成分)
Don't worry, we could contact the bank of the BTM for you.
请您不要焦急, 出现这种环境我们可以帮忙您联系BTM机的所属银行.
The code BTM can be applied to LWR assemblycalculations.
BTM程序可用于轻水堆组件的计算.