What is the meaning of labor in lieu of material

To work instead of material is not often heard of, often heard of is to material instead of labor settlement; here to material instead of labor refers to the labor production of products or ancillary products to pay for labor compensation, generally exists in a number of production sectors to master the special manufacturing technology but the lack of specific resources in the industry, or the product can be converted to a certain extent more easily in the industry, such as demolition of the industry, the demolition of the demolition company to use the demolition of down the Waste steel, waste keel, cement concrete blocks and copper wire and other engineering waste recycling offset demolition project labor costs and equipment costs, so that you can appropriately reduce the demolition of the project's additional expenditures; in addition to some of the more primitive labor exchange also exists in lieu of materials, such as rural villages for the countryside grain harvesting and sunshine grain, direct settlement of the labor cost with food.

As for the work in lieu of materials, according to the literal meaning of understanding as, through part of the labor offset raw material expenditures, I can think of is the industrial OEM production, for example, AMD for Intel OEM chip processing, Intel agreed to provide AMD with 500,000 pieces of the original chip plate, AMD was asked to return 200,000 pieces of the finished chip, then AMD obtained 300,000 pieces of deduction. Then AMD will get 300,000 pieces of the original plate minus the number of loss in the production process, and AMD can utilize this part of the plate to process and produce its own chips. But in fact this kind of settlement is very primitive, unlikely to exist in this kind of large order transaction, mention the Lord can go to see the rural clothing production industry upstream and downstream order relationship, according to my understanding there may be the so-called "work for material" settlement.

If you want to look at the linguistic meaning of "labor for material", I'm sorry, but I can't help you there ---