coherent
adjective
(of an argument,theory,or policy) logical and consistent
（论据,理论,政策）合乎逻辑的；协调的
they failed to develop a coherent economic strategy.
他们没能制订出一个协调的经济计划.
■(of a person) able to speak clearly and logically.
说话条理清楚的
she was lucid and coherent and did not appear to be injured.
她思路清晰,说话连贯,看来没有受伤.
united as or forming a whole
结合成一体的
divided into a number of geographically coherent kingdoms.
分割成若干互相接壤的王国.
(Physics)(of waves) having a constant phase relationship
(物理)（波）相干的；相参的