核子的

If we were ignorant of the structure of the atom,it would be

如果我们不知道原子的结构，我们就不能研究核子物理学。

Nucleon density distribution is one of the most important characters of an atomic nucleus.

核子密度分布是原子核的一个重要性质。

A proton or a neutron, especially as part of an atomic nucleus.

核子质子或中心，尤指作为原子核的一个组成部分

A theory of atomic structure that assumes an electron orbiting a nucleus can only be at certain energy levels.

假设电子需要有一定能量才能环绕核子轨道的原子结构理论。

CERN, the European Organization for Nuclear Research, is the world's leading laboratory for particle physics.

一欧洲核子研究中心，欧洲核研究组织，是世界领先的实验室，粒子物理学。

In the relativistic σ-ω model, the influence of the parameters in self-interaction of σ meson to the equation of state of normal nuclear matter, especially, to incompressibility, effective mass, and coupling constants, is studied in detail. We find that these parameters have an intense relationship to the property of nuclear matter.

在相对论σ-ω模型里，详细讨论了σ介子的自相互作用参数对正常核物质物态方程的影响，特别是对核物质的不可压缩系数、有效质量，以及σ介子与核子、ω介子与核子之间的耦合常数的影响，发现这些参数与核物质的性质之间有紧密的联系。

Our purpose is to try to understand some long-standingproblems in light baryon which include (1) The energy level or-der between the positive- and negative- parity partner states,in particular, Roper resonance puzzle;(2)The baryon spin-orbitstructure puzzle-the absence of spin-orbit effects in baryon spec-trum;(3)The calculated amplitudes of nucleon form factors droptoo fast and the uncertainty of the multipole strength in thetransition process of rN →△.

我们的目的是试图解决以往组分夸克模型在轻重子系统的研究中存在的几个问题：(1)重子谱中正负宇称配对态的能级次序，特别是Roper共振之谜；(2)重子谱中自旋轨道看不见之谜；(3)核子形状因子随转移动量增大而下降过快及核子到其共振态光和电生过程中多极子强度和形状因子的不确定性。

The exchange part of the interaction,which is taken to be of finite range and the density dependence of NN interaction,is accounted for in the folding procedure.The results are used as the real part of the optical potential for heavy ion scattering.

回顾了折叠模型的普遍特征和讨论了理论计算过程，对各种类型的核子-核子相互作用下计算的相互作用势进行比较，发现双折叠模型对大部分系统相互作用势的实部取得了满意的结果。

A 1973 Los Alamos study entitled Systems and Cost Analysis for a Nuclear Subterrene Tunneling Machine: A Preliminary Study, concluded that nuclear subterrene tunneling machines would be very cost effective, compared to conventional TBMs.

1973年，在美国洛斯阿拉莫斯，有一份书名为《对于一种核子熔岩钻隧道挖掘机的系统和成本分析：一项初步研究》的研究，得出的结论是，核子熔岩钻隧道挖掘机，相比于传统的隧道掘进机，是非常有成本效益的。

Ultrasound and scintigraphy are non-invasive methods used to detect urinary extravasation. Reconstructed CT ureteropyelography has also been employed for the detection of urinary extravasation after renal transplantation. MRI imaging can show the renal function of the transplanted kidney and the extravasation. MRI is an effective non-invasive alternative for the diagnosis of urinary extravasation after renal transplantation especially when ultrasound and scintigraphy are inconclusive.

超音波及核子医学检查是诊断肾脏移植后尿液外漏的非侵袭性的方法，MRI 可以明确的侦测尿液外漏，而且可以知道移植的肾脏是否有功能，这能决定是否需要及是否值得再一次手术，所以MRI 是另一个可以有效且非侵袭性检查，在超音波及核子医学检查没有明确诊断时，可以帮助诊断。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。