conversion from horizontal adit driving to main tunnel driving
American Institute Time Hull Form {= AITH Form}
exponent form Newton backward interpolation operator in power exponent form
form factor [= wave form factor]
metric normal form of quadratic form
the canonical form of a quadratic form
Unitary-form (U-form) firm
represeuting a complete form sence f rom one thousaud Chinese feet and a detail form from one hundred Chinese feet
1-wire bus driving circuit
4-TFT pixel driving circuit
a pair of half bridge driving system
AC auxiliary driving system
AC driving of a diesel locomotive