The meter could record automatically the whole process of penetration which was fully reflected on marked scales in accordance with change of water pressure in the field.

这种仪器在设计上，采用了由大到小的逐渐变化的水压梯度，使渗透过程更符合于田间实际情况。此外，它还能自动记录渗透的全过程。

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Of the four main threats, it is the lone individual, self-radicalised on the internet and with no suspicious contacts or record of activism, who is the hardest to identify and deal with: organised networks are vulnerable to penetration.

ECONOMIST: Security at the Olympic games