Discussion on material cost accounting of assay laboratory of gold geology;

To reduce material cost of building engineering according to the principle of function-cost analysis;

Discussion on the assessment method of material cost of ready-mixed concrete enterprises

Because the fuel cost is more than 50 percent of th e total cost,to reduce the cost and improve the efficiency,the article discuss the measure of power supply fuelcost-reduction through the caculation of the coal consumption balance.

Besides solid factors as production technology,other factors affecting fuel cost of power plant are mainly as follows;generated electrical energy,thermal value of fuel,standard coal consumption,fuel price,and so on.

At last,the feedstock cost will affe.

the feed cost of per kilogram body weight was increased very significantly from 8 to 9,10 age of week,the ages of slaughter or vendition of goose was selected on 56 days for the lowest cost of feed.

In the sub- system of pullets, body weight for 130 ?days - old birds was slightly higher than the standard, and feed cost per bird was 13.

05), feed cost decreased 8.

篢his paper deals with the growth effect of Epinepheltts awoara which wereraised in het-box at different areas by means of using the artificial diets．The resultshows that the food cost of using the artificial diets is lower than the cost of using smallfresh fishes.