2.The coating wall paper that chooses at this moment should have very good scrab resistance and multilayer enclothe a gender.
这时选择的涂料墙纸要有很好的耐擦洗性和覆盖性。
3.With convolution integral, a new formulation for describing the relation of soft X-ray reflectivity of multilayer with the different energy Monochromaticity of incident light is deduced.
利用数学卷积积分,论上推导出一个在入射光不同单色性下精确计算膜反射率的公式。
4.The paper introduces single "U" groove welding procedure for stainless steel inner cylinder of multilayer high pressure vessel,opening up a new method for welding clading stainless steel vessel.