英语介词数目繁多，使用频率很高。同一介词在不同的情况下所起的作用各有不同。在一定的上下文中，一些介词可以表示比较的意义。现归......

Mercury sphygmomanometer (MSM) is reliable and widely used in clinics and hospitals. The principle of Korotkoff sounds m......

Currently,200 mm wafer foundry companies are beginning to explore production feasibility under ground rules smaller than......

This paper separates the amount of IPO underpricing(primary market underpricing) and overvaluation(secondary market over......

研究Banach空间中强极小正则锥导出的半序结构,得到一个抽象的极小极大定理....

A new scheme with extended model space is proposed to improve the calculation of multi-reference second order perturbati......

A moored acoustic Doppler current profiler(ADCP) data,satellite-derived sea surface wind data,and the chlorophyll-a conc......

1 Introduction As the target commitment period under the Kyoto Protocol nears its end,further measures are under conside......

Optical spatial modulation(OSM) is a multiple-transmitter technique that can provide higher data rates with low system c......