AIM: To study antiasthmatic effect of citral from aqueous extract of fruit of cubeb litsea tree and its mechanism.
目的：研究山苍子水提物柠檬醛的抗哮喘作用及其机理。
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In another example, if [CubeB]. [Time] has instead the members 2007 and 2008_1, then the virtual cube in the previous example has the members 2007, 2008, 2008_1 and 2009.
A query against 2007 returns data from its parent cube [CubeB], and a query against the merged member 2008 returns the results from both [CubeA] and [CubeB] according to the merge operator.