中文摘要：

稳固的内部核心的翻译摆动是地球基本正常模式之一，它是也叫的 Slichter 模式。正常模式应该被切开由于地球旋转和椭圆状形成一个三位字节。在这研究，根据 Slichter 模式的切开的模式，被尝试了由在全球地球动力学工程网络在 6 个全球性分布式的永久车站从超导的比重计(SG ) 使用长期的连续严肃大小的产品系列检测 Slichter 三位字节存在的可能性。结果显示全球 SG 观察的背景噪音水平是 0.0158 nms ? 2 并且任何全球泛音的大小阀值发信号，它可以被全球 SG 检测，是 0.0152 nms ? 2 在从 Slichter 三位字节可以在发生的 0.162～0.285 cph 的 subtidal 频率乐队。它暗示签名与三位字节有关，可以在全球 SG 观察被识别，如果他们存在。有有在全球 SG 观察从背景噪音显著地出现的 5.310， 4.995 和 4.344 h 的时期的一组全球泛音签名，这被发现。他们在对 Slichter 模式的切开的模式的好同意。它暗示这组签名可以与内部核心有关是翻译摆动。越过内部核心边界的联系密度对比可以作为在在 PREM 和 1066 A 的地球模型提供的价值之间被推出。

英文摘要：

The translational oscillation of the solid inner core is one of the Earth＇s fundamental normal modes, which is also called Slichter mode. The normal mode should be split to form a triplet due to the Earth＇s rotation and ellipticity. In this study, according to the splitting pattern of Slichter mode, an attempt has been made to detect the possibility of Slichter triplet＇s existence by using the product spectra of the long-term continuous gravity measurements from the superconducting gravimeters （SG） at 6 globally-distributed permanent stations in the Global Geodynamics Projects network. The results indicate that the background noise level of the global SG observations is 0.0158 nm s^-2 and the magnitude threshold of any global harmonic signals, which may be detected by the global SG, is 0.0152 nm s^-2 in the subtidal frequency band from 0.162 to 0.285 cph in which Slichter triplet may occur, it implies that the signatures, related to the triplet, may be identified in the global SG observations, if they exist. It is found that there is a group of global harmonic signatures with the periods of 5.310, 4.995 and 4.344 h emerging significantly from the background noise in the global SG observations. They are in good agreement with the splitting pattern of Slichter mode. It implies that this group of signatures may be related to the inner core translational oscillations. The associated density contrast across the inner core boundary may be deduced as between the values provided in the Earth models of the PREM and 1066 A.