lever unequalbeam balance
横杆式不等臂天平

variegated coralbean bark.
杂色刺桐皮

and the Cretaceous marine mudstone and coalbearing formations of transitional facies.
白垩系海相泥岩和海陆交互相含煤层系。

Objective To develop the dualbeam technology of cyclotron to produce radioactive nuclide, which can increase radiopharmaceuticals output.
目得开发回旋加速器双束流技术生产放射性核素。