Some polypide surface membrane and food vacuole membrane showed multilayer thread-like change.

有些虫体表膜、食物泡膜呈现多层螺纹膜样改变。

The coating wall paper that chooses at this moment should have very good scrab resistance and multilayer enclothe a gender.

这时选择涂料墙纸要有耐擦洗性和多层覆盖性。

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,理论上推导出一个在入射光不同单色性计算多层膜反射率公式。

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.

要详细介绍了内商为不锈钢多层高压容器外U形坡口单面焊接工艺，从而为不锈钢复合容器焊接开辟了一条新途径。