The results show that the absolute humidity of the welding environment has great influence on the hydrogen diffusion , and that the greater the absolute humidity , the higher the content of hydrogen diffused in deposited metal 结果表明，焊接环境的绝对湿度对超低氢焊条熔敷金属中扩散氢含量有较大影响，绝对湿度越大，焊缝金属中扩散氢含量越高。
3.
Only when it takes humidity ratio h / ? as independent variable instead of absolute humidity h in researching and calculating the influence degree of the humidity on the discharge voltage , the emendation coefficients of relative air density and humidity can be independence , and can reflect the influence degree of atmospheric parameters on outer insulation discharge voltage actually 当以比湿h代替绝对湿度h为自变量研究和计算湿度对放电电压的影响程度时，相对空气密度校正系数和湿度校正系数才能相互独立，才能真实地反映大气参数对电气设备外绝缘放电电压的影响程度。
4.
Researching and analyzing on the test results of the influence of atmospheric parameters on outer insulation discharge voltage and its various emendation methods , it can be concluded that : with the change of relative air density , its humidity ratio h / ? will also change even though the absolute vapor mass ( absolute humidity h ) of the air is constant . consequently , the influence degree of the humidity on the discharge voltage should change , too 本文通过对以往的大气参数对外绝缘放电电压影响的试验成果及各种校正方法的研究分析认为：随着相对空气密度的变化，即使空气中所含水气的绝对质量(绝对湿度h )保持恒定，其比湿h也会变化，必然地，湿度对放电电压的影响程度也会变化。
5.
All the transmission lines of west - east electricity transmitting project are inevitable to crossing the high altitude and icing areas . for the reducing of the air pressure and the absolute humidity , the electricity strength of insulators will drop obviously . therefore , it must be considered the effect on the insulators " flashover voltage caused by the change of altitude and ice when the insulation cooperation of transmission lines are being designed “西电东送”工程的所有输电线路都不可避免的要经过高海拔和覆冰地区，由于大气压力和绝对湿度的降低会使绝缘子的电气强度显著下降，因此在进行输电线路的绝缘配合设计时必须考虑到海拔高度和覆冰的变化对绝缘子的闪络电压影响。
6.
Later , the paper ascertains how the prominent factors influence the humidifying effect by single factor experiment and got such solutions : when other situations do n ' t change , the nozzle flux will enhance with the increase of the nozzle aperture and spraying pressure . air ' s changing quantity of enthalpy and absolute humid , valid humidified quantity , humidifying efficiency and saturation efficiency will enhance with the increase of the initial water temperature . with the enhance of the praying pressure , the valid humidified quantity and air ' s changing quantity of enthalpy will increase first and decrease later , while the humidifying efficiency will drop 然后通过单因素试验确定影响显著的因素如何作用加湿效果，得到：在其他条件不变的情况下，喷嘴流量随喷嘴孔径和喷水压力的升高而增大，空气焓变量、绝对湿度差、有效加湿量、加湿效率及饱和效率随喷水初温的升高而提高，有效加湿量和空气焓变量随喷水压力的升高先增加然后有所下降，而加湿效率随喷水压力的升高而下降，焓变量和绝对湿度差随水气比的增加而增大。
