center line of bolt hole
self-drilling injected hole bolt
effective diameter of bolt or high-strength bolt
A shrinkage method combining with medium-length hole and shallow hole
hole by hole blasting technique
hole by hole detonating
hole by hole initiating
hole by hole initiation
mid-and-deep hole combining shallow hole balsting
12-phase flywheel energy storage generator system
AC Pulse Flywheel Generator Sets
assembled flywheel system
Dual-mass flywheel damper