Amphibious aircraft buoy, stamping die and manufacturing method
A novel composite membranes based on sulfonated montmorillonite modified Nafion® for DMFCs
Assembly type concrete wall hoisting adjusting device
Control method and system of vehicle-mounted refrigerator based on SOA technology
High proton-conducting Nafion®-–SO3H functionalized mesoporous silica composite membranes
Idle-speed-based lithium battery protection method, device and equipment and storage medium
Magnetic friction coupling elevator disk brake utilizing magnetic field to regulate friction
MECHANICAL MOTOR-DRIVEN FRICTION BRAKE DEVICE FOR RAIL VEHICLE
Method and apparatus for monitoring efficiency of aircraft auxiliary power unit