Technology, skills; Labor force;

Example:

1.

It doesn't need much new technology, but it is combined with hundreds of years of jewelry technology.

This does not require high-tech technology, but it needs to be integrated with the jewelry technology that has been passed down for a hundred years.

2.

In the absence of local materials and techniques, an abstract form has become a natural aesthetic choice.

In the absence of local materials and technology, an abstract form has become the aesthetic feeling formed by natural selection.

3.

But in Britain, it takes some skill to leave money to take care of animals as part of a will.

But in Britain, it takes some skill to leave money in a will to take care of animals.