- 两倍: twofold; double; twice as mu ...
- 量: measure capacity
- 两倍: twofold; double; twice as much 十是五的两倍。 ten is the double of five. 产量是十年前的两倍。 the output is twice as much as that of ten years ago
- 等倍量: equimultiple
- 二倍量: quantities duplex
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