The CARDS can be made in the originator, not the most difficult in technique, but it is one of the most occupation for showing off and comparison technique.

发底牌可说是千术的鼻祖，虽不是最难度高的千术手法，但它是最被职业老千用来炫耀和比较的手法。

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The method of pipeline drying includes desiccant drying, dry air drying, vacuum drying and etc, among of which vacuum drying is the most difficult in technique.

管道干燥的方法有干燥剂法、干空气干燥法、真空干燥法等。 其中真空干燥法的技术难度最高。

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That's an essential part of the technique, and it really helps me stay focused (it's difficult to forget the pomodoro is running - you can constantly hear it in the background).

这是番茄时间管理方法的重要部分，它确实有助于我保持专注(很难忘记番茄钟运行-你可以不断听到背景，当期注意力涣散时，马上就被提醒了)。

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That said, even if the fingerprint age problems becomes too difficult to tackle in the near future, this technique seems to hold promise on its own as a detection technique that can be employed fairly quickly.

FORBES: Can Forensic Scientists Tell How Old A Fingerprint Is?

Although the technique will probably work in other mammals, it is a difficult procedure.

ECONOMIST: A ��virgin birth�� in mice