... short-period variation 短周期变化 short-period multiple 短周期多次反射 short-period array 短周期组合 ...
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The machine frame can install various agricultural implements, the functions are multiple, the utilizing rate is high, and the lay-up period is short.
这种机架可以安装多种农机具，功能多、利用率高、闲置期短。
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