reference scale
1.For the steering of UTC(NTSC), a reference time scale is necessary, but any time laboratory in the world can not get the real time difference between UTC and UTC(K), so UTC can not be used as a real time reference of steering UTC(NTSC). Therefore the method for calculating the real time reference time scale according to the local atomic clocks and that of controlling the steering of UTC(NTSC) are the two key aspects.
7.Finally, emphatically analyses and predicts the relevant influenceing factors of volume of goods and guest transported, then utilizes mathematical statistics method and some other proper tool, makes concrete and accurate prediction of regional volume of goods and guest transported, offer essential data reference and basis for the regional traffic planning and scale confirming .
8.Therefore, the determination of design parameters for the scale-up of the polymerizer this time is based on the scientific analysis of relevant factors during polymerization and with reference to the test result, thus realized the similarity of key parameters of the big and small polmerizers and the process similarity. The successful scale-up of HSBR polymerizer and SBR-1502 latex polymerizer provides reliable basis for future scale-up ofbutyl styrene series.
10.The difficult points of cost plan and control for large-scale intermittent manufacture include laying stress on controls of product project cost, preconstruction on cost standard reference system, reasonable share for total cost, structure of target cost as well as symmetrization of cost information, etc. .
