China gets 80% of its electricity from coal, and Duke gets about 70%, so both have incentive to act.
中国80%的电力都来自于燃煤发电，而杜克能源这一比例约为70%；双方都有动力采取行动。
2
Like the proverbial canary in a coal mine, the nearly 10, 000 known bird species act as "environmental barometers" whose populations can appraise the greater well-being of their habitats.
Effectual stress system, as the bridge of relating stratum energy and CBM reservoir formation, is formed by macroscopical dynamical energies which act on coal-bed.