This thesis suitably solve the problem of stress distributions between the concrete parts with different strength classes under tlie partially comprossion by regarding the do . design strength as t . he calculate strength in enlarging parts , and the tested strength as the calculate strength of the exlsting conerete 本论文以设计强度作为加固部分计算强度，以实测强度作为旧桥砼的计算强度，合理解决了计算偏心受压条件下不同强度砼共同作用下的各项应力。
As a result , of the comparison , the rms or to technique at appropriately low bias voltage can produce the al _ ( 2 ) o _ ( 3 ) coatings with good comprehension properties , by which the al _ ( 2 ) o _ ( 3 ) / al gradient coatings as the long - term protection to uranium is a potential candidate 经比较分析我们认为在适当的低偏压条件下，采用rms或to方法获得的al _ 2o _ 3镀层的综合性能最好。在已有基础上，可尝试在铀上制备al _ 2o _ 3 al这种梯度镀层，以期进一步提高对铀的防腐保护性能。
The computer program has following advantage : the solution of main blade is by iterative scheme in time domain , the kutta condition is used by explicit equal pressure condition , the jacobian matrix which can reflect the influence on the difference between the upper and lower surface at trailing edge by dipole is calculated in each iterative procedure , in order to improve the convergence of iteration 本文编制的螺旋桨非定常性能预报程序是针对主叶在时域中迭代求解的， kutta条件采用的是显式的等压条件，求解中为了提高迭代的收敛性，在每次迭代中都重新计算反映偶极子强度对尾缘处上下表面压力差影响的jacobi矩阵。
Using the rock resistivity meter with simulating in - situ conditions , the relations between rock resistivity and temperature were observed from 6 sandstone samples with different porosity and permeability , while samples were brine water - saturated and subjected to certain confining pressure . it is found that the resistivities of water - saturated rock samples decrease in the form of power expression with the temperature increase . although the resistivity of brine water decreases with temperature in the same rule , it can not entirely account for the decreasing of rock resistivity . the cementation factor 利用模拟地层条件岩芯电阻率测量仪，对6块孔隙度渗透率各不相同的砂岩岩芯，在一定围压条件下，岩芯完全饱和盐水时，考察了岩芯电阻率随温度的变化。发现饱和盐水岩芯的电阻率随温度升高，以幂函数形式下降。虽然岩芯中饱和盐水的电阻率同样随温度以幂函数形式下降，但岩芯电阻率的下降不能完全用岩芯饱和盐水的下降表征。
Some conclusions can be drawn from the experiment . first , the discharge coefficient of liquid is almost constant when the pressure before injecting is high enough , but the discharge coefficient of gas fluctuates because of the influence of liquid flowing . second , when the total pressure of gas is low , under the same total pressure , increasing the pressure before injecting or under the same the pressure before injecting , lowing the total pressure of gas make the mean diameter smaller 流量特性试验表明,在液体喷注压降较高时,液体的流量系数基本不变,但是气体的流量系数受液体流动的影响较大;雾化特性试验表明,在同一气体总压条件下,增大液体喷注压降或者在相同液体喷注压降条件下,减小气体总压对液滴雾化有利。
