周期运动的同期性 synchronizationof cyclical movements
合同期性 closing simultaneity
同期性的 intermittent
开关合同期性 closing-simulataneity of the switching device
开关分同期性 opening-simulataneity of the switching device
同期正当性 Concurrent Validity
合闸同期性 closing-simultaneity ; switching synchronization
分闸同期性 opening- simultaneity
地质同期性 geologic synchronism
同期合法性 Concurrent Validity
回收工业经受不了市场价格的同期性激烈涨落。
The recycling industry is particularly vulnerable to wild cyclical swings in the market.
但是，正如联邦调查局指出，这些数字太模糊，不能用来在有效性上与上年同期数字做比较。
But, as the FBI pointed out, the Numbers are too fuzzy to make year-on-year comparisons with any validity.
他说，由于全球性的衰退，2009年的出口可能会比去年同期下滑6%。
Exports may decline 6 percent in 2009 from a year earlier because of the global recession, he said.
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