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周期性变化 zhōuqīxìng biànhuà
agric. cyclic alteration
archit. cycling
busin. cyclic change
desert. periodic change
econ. periodical variation; fluctuation cyclical
hydroel.st. periodic variation
shipb. cyclical variation
wind. cyclic variation
被调量的,调节值的周期性变化 zhōuqīxìng biànhuà
gen. cycling
周期性变化: 38 phrases in 14 subjects
Air defense1
Aviation1
Business1
Ecology1
Electricity generation1
Electronics2
Engineering geology1
General3
Materials science1
Nautical2
Oil / petroleum1
Polymers1
Securities1
Technology21