Cathay pacific has also adopted an additional internal action level to ensure that crew will not exceed the recommended exposure dose 国泰航空已采用相关措施以确保机组人员不超过建议的年辐照量。
2.
The exposure dose distribution and line width control for the laser direct writing system are analyzed . some experiments are also carried out 对激光直写光刻的曝光量分布和线宽控制进行了相关理论分析和实验。