英语语法分析

The radiation dose can be expressed in units of Sievert (Sv).

辐射剂量可以西弗特(Sv)为单位。

Exposure to 1,000 millisieverts (1 sievert) of radiation can cause radiation sickness.

暴露于1000 ms v的辐射量会导致辐射病。

Nakagawa said that an accumulated dose of 4 sievert kills 50% of those exposed within 60 days.

中川说，50%的4希弗剂量累积者将在60天内死亡。