海底扩张说

theory of seafloor spreading (geology)

surname Hai

ocean / sea / CL:個|个[ge4],片[pian4] / great number of people or things / (dialect) numerous

seabed / seafloor / bottom of the ocean

(equivalent to 的 as possessive particle)

background / bottom / base / end (of the month, year etc) / remnants / (math.) radix / base

to enlarge

seafloor spreading (geology)

expansion / dilation / to expand (e.g. one's power or influence) / to broaden

surname Zhang

to open up / to spread / sheet of paper / classifier for flat objects, sheet / classifier for votes

to persuade

to speak / to say / to explain / to scold / to tell off / a theory (typically the last character in a compound, as in 日心說|日心说 heliocentric theory)

variant of 說|说[shuo1]

to speak; to talk; to say / to explain; to comment / to scold; to tell off / (bound form) theory; doctrine