常见例句双语例句The neutron pulses are acquired by a rotating chopper, which is a plate made up of a sheet cadmium sandwiched in between two sheets of stainless steel.脉冲中子束由机械选择器产生，选择器是一个由两片不锈钢中间夹一镉片构成的高速转盘。 返回 neutron chopper