But the most reliable alternative to X-ray scanning, hand-searching everything, is slow and expensive.

但是手动搜索一切，这种替代X射线扫描的最可靠的办法慢而昂贵。

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The microscopic mechanism of irradiation damage of Al film reflector is studied by the slow positron annihilation technique and X-ray diffraction.

用慢正电子湮没等分析技术研究了辐照损伤的微观机制。

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"Ray Boulger at broker John Charcol says:" It took six to seven years for average property values to fall around 15% in the last recession and recovery was also slow.

低压贷款经纪公司John Charcol的Ray Boulger说：“上一次经济衰退中，平均房屋价格在大约六七年的时间里才下降了约15%，而且经济恢复的速度也十分缓慢。”

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Another worry, according to Robin Harris, an analyst with the Data Mobility Group, is that Blu-Ray adoption will be slow because few people will notice the difference between formats, since many players can neatly "up-convert" DVDs for high-definition sets.

FORBES: Magazine Article

X-ray millisecond pulsar has proved puzzlingly slow and drawn-out.

ECONOMIST: The dizziest, giddiest stars