Sentence examples for making it difficult to trace from inspiring English sources

Surviving examples of the technique do not predate the 18th century, making it difficult to trace its earlier history.

The exogenous sequence of P1 is 16 nucleotides in size, and such a short fragment can be found in many species when a BLAST search was run to identify homologous sequence in GenBank, thus making it difficult to trace its origin.

It bounces users' browsing activities around a large network of computers known as nodes making it difficult to trace.

A major challenge with sustainable procurement is that palm oil from different sources tends to get mixed together, making it difficult to trace back to the plantation.

Once in Albania, almost every Mercedes is legitimately registered with the authorities in Tirana without further checks, making it difficult to trace stolen vehicles.

The clandestine nature of the tightly coordinated siege, in which computer systems were barraged with messages, apparently was weeks or months in the planning, making it difficult to trace or stop.

Such hard-to-notice cases could make it difficult to trace the spread of the virus.

The high sedimentation rate in the northern Ryukyu region also makes it difficult to trace.

While hydrogen gas has been increasingly used as a clean and green fuel in household and transportation appliances, the absence of color, odor, and taste has made it difficult to trace and detect hydrogen under complex matrices [1].

In addition, users can no longer be tracked to different services because they can use different attributes to access different services which makes it difficult to trace online identities over multiple transactions, thus providing unlinkability for the user.

Constable Le Moignan says the passage of time has made it difficult to trace members of Flt Lt Saville's family, some of whom are believed to live in the UK.