The main conclusions are as follows:(1) The average annual precipitation of Qilian Mountain is 288.3mm from 1960 to 2002, the value is 279.6mm before 1987, and 302.3mm after 1987, which increased by 8.4%.

The main conclusions were as the following:(1) The non-capillary holding capacity from high to low is shrub forest(66.2mm)>mixed wood>(57.52mm)>broadleaf fores(t47.99mm)>bamboo fores(t46.98mm).

The main conclusions are as follows: ①the salt is accumulated in the 0～60 cm soil layer under drip irrigation or ditch irrigation with the 2700 m~3/hm~2 irrigation water during cotton growing period. The salt accumulated rate is 12.4% for under-film drip irrigation and 3.4% for ditch irrigation.

The main conclusions and policies are as follows:一、 conclusions1 、 The basic competitiveness of investment environment in Chongqing only lead Wuhan and Chengdu slightly, but dose not show obvious competition advantage .

The main conclusions and policies are as follows:1. Conclusions(1) The rural-urban income disparity in China is quite large, maybe the largest in the world.

The main conclusions are : 1、 The pictographs are quite nonobjective and the strokes of them tend to be straight lines even from the very beginning of character formation.

The main conclusions are as follows: SOC content is much correlative to soil texture, it is negative correlation to coarse silt(R=-0.50, a=(0.01)) and positive correlation to clay(R=-0.45, a=0.05);

The main conclusions are as follows:With studying effects of factors named pulp concentration, pH, temperature, dosages of enzyme and time on modification of secondary fiber, the concluded optimal process is 3-5% pulp concentration, pH5.0-6.0, 50-60℃, 0.3IU/g oven-dried pulp and 1.0-1.5h.

The main conclusions were below:(1) The concentrations of ∑PAHs were 3440.7, 3067.1, 3726.9 ng/Lin surface-water, middle-water and bottom-water, respectively, and 138.6 ng/g in sediment.

The main conclusions are as follows:1.The important kinetics parameters of simulated sample:The activate energy distribution of the kerogen for the hydrocarbon generation of C1 and C2-C5 are 57~74Kcal · mol-1 and 46~49Kcal· mol-1,respectively.

The main conclusions are as follows:1. The best results were obtained for 3wt% Au/Fe2O3N Au/NiO and Au/Co3O4 prepared by CP and OMCG which exhibit very high catalytic activities for CO oxidation and can completely oxidize lvol%CO in air to CO2 at -23℃~ -22℃ and -5℃ respectively;

This theory confirms main conclusions obtained previously in the Rayleigh-Debye-Hans approximation (Khlebtsov, N.G.

We first discuss briefly the state of the problem and information on the method of [1] and then present the main conclusions of the study and some data confirming these conclusions.

The main conclusions are as follows: (i) The Arrhenius equation remains a major tool for describing the temperature dependence of circuit lifetime.

At the microscopic level these results corroborate the main conclusions of Suslov (Zh.

The main conclusions are as follows: 1) The shape of the epidermal cells is elliptical, polygonal or irregular and the anticlinal walls are arched, straight or sinuolate, sinuous to sinuate.

The paper gives experimental results of 13 quadrant orifices on the original discharge coefficients, lower limits of the critical Reynold's number, and the relations between the discharge coefficients and the construction parameters. The main conclusions are: 1. the lower limits og the critical Reynold's number should be greater than the value given in the code by 10 times; 2. the discharge coeffieient is affected by the parametr r/d, and the values r/d may be different from the value specified by Koennecke...

The paper gives experimental results of 13 quadrant orifices on the original discharge coefficients, lower limits of the critical Reynold's number, and the relations between the discharge coefficients and the construction parameters. The main conclusions are: 1. the lower limits og the critical Reynold's number should be greater than the value given in the code by 10 times; 2. the discharge coeffieient is affected by the parametr r/d, and the values r/d may be different from the value specified by Koennecke 3. the manufacturing precision seems to have little effect on the stability and numerical values of the discharge coefficients.

141 typical magnetic storms of the sudden commencement (SC) type, of which 45, 42 and 54 have strong, weak and no main phase respectively, have been selected from the magnetographs obtained at Zo-Se observatory during 1936～1962. Using data of solar flares and radio bursts of type 1V, the flares corresponding to the storms have been identified. The statistical properties of the three types of storms and their corresponding flares are investigated by statistical mathod. The charecteristics of corpuscular streams...

141 typical magnetic storms of the sudden commencement (SC) type, of which 45, 42 and 54 have strong, weak and no main phase respectively, have been selected from the magnetographs obtained at Zo-Se observatory during 1936～1962. Using data of solar flares and radio bursts of type 1V, the flares corresponding to the storms have been identified. The statistical properties of the three types of storms and their corresponding flares are investigated by statistical mathod. The charecteristics of corpuscular streams emitted by flares are evaluated. By means of correlation analysis, the relations between storm's charecteristics and the charecteristics of flares as well of corpuscular streams are investigated. The main conclusions are as follows; 1. The flares producing the storms with strong main phase are stronger. They concentrate mainly near the central meridian of the solar disk; while the flares producing the storms with weak or no main phase are weaker. The distribution on the solar disk of the former have strong east-west asymmetry, while that of the latter are rather uniform. 2. The formation of the storm's main phase is closely related to the velocity of the corpuscular stream, while the relation with the density of stream, is poor. On the average, the density at the front of streams producing SC storms is 10～40 proton/cm~3. 3. The emitting angle of the corpuscular streams producing SC storms is about 120°±(20°～30°). The lower limit of the total kinetical energy of streams is 10~(27)～10~(28)erg. 4. a_(p max) and K_(p max)—maximum values of α_p and K_p during storms- are closely correlated with the velocity v of streams, while the correlation between the maximum amplitude ΔH_(max) of storm's main phase and v is very poor. 5. The geomagnetic latitude of the Sun, i. e that of subsolar point, affects not only the type, but also the intensity of storms, and it appears that the effect on intensity is more inportent.

The present paper starts from the Bethe-Salpeter equation for the bound states of a fermion and anti-fermion pair. Assuming that the interaction between the straton and anti-straton can be represented approximately by an instantaneous interaction in the center of mass system, we obtain the following main conclusions: (1) the solution of the Bethe-Salpeter equation may be carried out in ordinary three dimensional space and the numbers of components of the wave functions for the pseudo-scalar and vector...

The present paper starts from the Bethe-Salpeter equation for the bound states of a fermion and anti-fermion pair. Assuming that the interaction between the straton and anti-straton can be represented approximately by an instantaneous interaction in the center of mass system, we obtain the following main conclusions: (1) the solution of the Bethe-Salpeter equation may be carried out in ordinary three dimensional space and the numbers of components of the wave functions for the pseudo-scalar and vector mesons reduce respectively from 4 and 8 to 2 and 4; (2) If the interaction is spherically symmetrical in space and its spinor structure is of the diagonal coupling type, then it is seen from the equation for the pseudo-scalar mesons that the meson mass appears as a quadratic eigen value in the equation, without leading to the negative energy excitation usually encountered in the fourdimensional equation; (3) The structure wave function obtained in the instantaneous interaction may be used to study both the mass spectra of the bound states, and the processes involving only the center of mass system.