帐篷内保镖密布，帐篷外也有人在随时检测是否有任何的数据外泄，“你有一道万无一失的防线，”Lago先生说。
The perimeters of the tent might be controlled by guards, but there would also be people monitoring outside to see if any data gets out. "You have a line of defence for everything," says Mr Lago.
提出了差压检测法检测气缸的内外泄漏。
This paper provides the method on setting internal and external leakage of pneumatic cylinders through measuring the differential pressure.
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