A-A-A conjugation structure
A local firm that is vertically integrated
A Local Government Size
A local jujube variety ’Xianwangzao’
A local pear cultivar ’Hongli’
a Locally Netted Warning Radar System
a system for financial innovation diffusion
a system of a major field of specialization plus a minor field
a system of algebrac differentral equalions
a system of bioler control
a system of coast disaster forecast
a system of compensation
A system of controllable time