The testing was done on the working conditions such as the sample resolution, element wave-length, air-carrier flow, auxiliary air flow, observed altitude, etc.

对样品的溶解、元素波长、载气流量、辅助气流、观察高度等工作条件进行试验，选定了最佳测定条件。

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Turns out, the unseen killer of those first-wave Up bands was none other than water, the very element it was supposedly proofed against.

ENGADGET: Jawbone starts over, announces a redesigned version of its Up lifestyle-tracking wristband