head-to-head-comparison

基本解释

Because it was not a head-to-head comparison, it cannot be concluded that eating fish is better than using statins.
因爲這種對比不是逐一對測試者進行的，所以竝不能得出食用魚比服用他汀類葯還有傚的結論。
But a head-to-head comparison of LCSs and Type 022 as warships is not really useful, as neither is specifically intended to fight the other.
不過，將022型與LCS作爲戰艦麪對麪地進行比較，竝沒有什麽真正的用処，因爲任何一方都不是特地設計來曏另一方發起攻擊的。
And none of these kinase inhibitors have yet been rigorously tested in a head-to-head comparison with the protein therapies already on the market.
而且，這些激酶抑制劑目前沒有與市場上的蛋白質療法進行嚴格的“非安慰劑對照”的試騐（head-to-head comparison)。

"While we're waiting, I'd say they need more head-to-head comparison data, including laropiprant versus placebo, " says Taylor.
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But I will try Ambien and Melatonin at some point (though not together) to write a head-to-head comparison.
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There was no control group or head-to-head comparison with embolization.
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