This is achieved by applying and removing the J2EE context information on and off the thread when the application logic begins and ends.

当应用程序逻辑开始和终止时，这可以通过应用和删除线程内外的J2EE上下文信息来完成。

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Applying backflushing helps maintain the GC and the MS source by removing later eluting compounds from the column before reaching the MS, and prior to the next sample injection.

应用反吹技术可以在下一个样品进样之前，直接除去柱中的后洗脱化合物以防止其进入质谱仪，从而帮助我们保持气相色谱和离子源性能。

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These test methods cover procedures for assessing the adhesion of coating films to metallic substrates by applying and removing pressure-sensitive tape over cuts made in the film.

这些试验方法覆盖了对金属涂层片附着力的评估。附着性通过在涂层切口处施加和去除透明压敏胶带来评估。

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But the BBC's home affairs correspondent Andy Tighe said there were fears within the Police Federation, which represents officers, that removing additional payments for anti-social or dangerous work could deter high-quality candidates from applying to join the police.

BBC: Police pay cuts 'unavoidable' says home secretary