In this paper,with the aim of simplifying the operation of NC lathe,we describe the function and features of NC-plain compatible lathe,including the multi-operation mode.

Calculation and study are conducted for different outlets and operation modes in the light of GIS wiring in typical 750kV substation.

In this paper, a new operation mode of heat pump was developed, based on the defect and deficiency of existed heat pumps and aiming at energy saving and environmental protection.

With this as basis, the authors detendned the operating mode of mller press which will give better tecbocaland econmical results.

Based on an analysis of existing problems in foreign investment and financing of northeast state-owned forestry industrial enterprises and combined with practicam developing situation of these enterprises,this article puts forward that forestry industrial enterprises can choose operating modes like BOT,overseas listing,venture capital,funds etc in foreign investment and financing activities.

This paper studied the biological activity, action mechanism, application technology o.

Because of fix up and size of device are restricted,loader's job way and efficiency under the shaft not alike ordinary loader.

The improvement of operation of 3-t medium frequency induction furnace is introduced.

An absorption process is proposed for the treatment of waste gas of small petrochemical plants which are characterized by non-continuous open-loop operation, multiple products and multiple wastes production and severe pollution.