In this paper , a rigidity theorem of hypersurface in real space form will begiven.In addition, we obtain rigidity theorems of submanifold in sphere which improvethe result of Hou and Xu.
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.
The formation mechanism of orange valvule-like pinhole in rolled aluminium foil was investigated by using optical microscopy,scanning electron microscopy,and energy dispersion X-ray spectrum.
Bullae are rounded or irregularly shaped blisters containing serous or seropurulent fluid.They differ from vesicles only in size, being larger than 1 cm.
However, if you're new to English and you actually think this is English, or you're in part of those areas I talked about that speak this way, you actually have to learn the verb, " to be" in its negative form.
然而,如果你是初学者,而你真的认为这就是英文,或者你以前都我刚才讲的那种方式在讲,你真的必须学一下动词,to be 的否定。
Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land.
He struggled with keeping his skis parallel but he noticed on some of the jumps that he, you know, opened up his skis a little bit wider into a bigger V he was achieving longer distances.