重力高度改正
gravity height correction
航高改正仪
pressure-height corrector
CHEN-YIN修正力场
CHEN YIN modified force field
PCCP预应力高强钢丝
prestressing wire in PCCP
北京电力高等专科学校化学工程系
beijing electric power college chemistry department
超高力学性能
Super high mechanical property
磁场力力程
Magnetic field force range