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The heavy elements of Br, Hg and Pb in Caridina denticulate sinensis are 5, 2.7 and 2.3 times higher than that in Macrobrachium nipponesis from the same water.

生活在同一水环境中米虾的重元素Br、Hg和Pb的富集量分别是沼虾的5.0倍、2.7倍和2.3倍。

In general , ba stars belong to binary system , and their heavy - element overabundances are due to the accreting material from the companions ( the former tp - agb stars and the present white dwarfs ). carrying out a series of monte - carlo simulations , the changes of orbital elements of binaries are recalculated for wind accretion scenario of the total angular momentum conservation

研究表明,钡星应该属于双星系统,其重元素超丰来自双星吸积,它的伴星已经经历了s -过程核合成,而且由在以前发生的同其伴星(以前是agb星,现已演化为白矮星)的质量传输过程中,从伴星那里获得了富含重元素的物质,这样造成了钡星的重元素超丰。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。