查询词典 nuclear

In order to reduce radiation on the operator, a remote-control nuclear surface moisture-density gauge is developed by improving the original nuclear surface moisture-density gauge .

摘要为减少放射源对仪器操作人员辐射的影响，对表层型核子水分－密度仪进行了改进，研制出遥读遥测式表层型核子水分－密度仪。

He saw it as a dangerously loopy Bush prediction about the future behavior of a nuclear Iran — the idea being, presumably, that possessing "the knowledge" to make a nuclear weapon would so empower Iran's repressive leaders that they'll giddily rush out and start World War III.

他认为这是一种危险的循环布什预测未来行为的一个核伊朗-的想法，据推测，认为拥有"知识"与制造核武器将会使授权伊朗的镇压领导人时表示，他们将g iddily冲出并开始第三次世界大战。

Gracilis were applied to investigate the effect of proplastid on adaptability, in which such structure was found to be important to the competitiveness during heterotrophic growth in the dark; 2 a new procedure for differential display technology was developed and used to study the influence of plastid on nuclear gene expression, with which it was shown that the loss of plastid could cause remarkable changes in expression of certain nuclear genes.

本文主要有两点突出之处：1）应用裸藻褪色突变株与野生型的生长竞争实验探讨了原质体对于裸藻的适应意义，发现在黑暗环境和异养生长条件下原质体对于细胞的生存竞争有重要作用；2）改进了一种差异显示技术并利用该技术来研究质体的有无对基因表达的影响，证明质体丢失可导致某些核基因表达的显著变化。

The continued reliance of the U.S. and Russia on thousands of nuclear weapons on hair－trigger alert only adds to the perceived need for nuclear arsenals in India and Pakistan.

美国和俄罗斯继续依靠一触即发的数千核武器维持着平衡，反而加强了印度和巴基斯坦对建立核武器库的必要性的认识。

In one, Iran ends up with nuclear weapons, bringing new instability and a hair-trigger face-off with nuclear Israel into one of the world's least-safe neighbourhoods.

其一，伊朗最终拥有核武器，在世界上最不安全的地区引起新的动荡并同已拥有核武器的以色列形成一触即发的对峙。

The development of new nuclear weapons will be stopped, a sharp change from the Bush administration, which pushed for a new generation of warheads, and the new administration will work with Moscow to take US and Russian missiles off their current hair-trigger alert, while seeking "dramatic reductions in US and Russian stockpiles of nuclear weapons and material".

新的核武器发展将会停止，这是与布什政府推进新一代核弹头的政策一个显著的不同。并且新任政府将会在寻求"显著削减美俄两国的核武器和核材料的储存"的同时，与莫斯科合作将美俄两国的导弹从他们现在的"一触即发式警觉"中卸下。

In this thesis the process of constructing the non-perturbative Hamiltonian theory is de-scribed and is applied to estimate the vacuum condensate. It contains the following contents:At the very beginning, by using the path integral method and eliminating the gluon freedom, aGCM action 〓 of current quarks including lower order current-current coupling was derivedfrom the QCD Lagrangian and the effective Hamiltonian operator that could hardly be doneby the normal methods was derived. After doing this, the broken vacuum is introduced whichincludes quark-antiquark condensate through the generalized Bogoliubov-Valatin transformation,the effective Hamiltonian of constituent quark was derived. The detailed formulas containingthe spatial current-current coupling term for the effective Hamiltonian and gap equations wasworked out by parameterizing the correlation kernel as a quadratic potential. And then, the gapequation was solved and the quark-antiquark condensate of vacuum was studied both in the casesof instantaneous interaction and retarded interaction. In the end, the effective Hamiltionian withtwo-body quark-quark interaction was derived with one-body approximation, and with the helpof the functional integral method the coupling non-linear dynamic equations for systems withnuclear matter was derived. Finally, these equations were solved by selfconsistent method andthe effect of nuclear matter on vacuum condensate was studied. The spatial current-current coupling term is too difficult to handle, hence the correlationkernel is assumed to be not important and usually omitted in the pure vacuum condensate, andthe instantaneous interaction generally is adopted. Retaining the spatial current-current termand partial retardation effect, the quark pairs condensate in pure vacuum was studied, and theeffect of quark mass was also studied. At present, little study is focused in the case with nuclearmatter and spatial current-current term also omitted. Under the approximation with partialspatial current-current term, the effect of nuclear matter on vacuum condensate was studied.

本论文描述了量子色动力学整体色对称模型哈密顿量方法的构建过程，得到了反映正反夸克对凝聚真空结构的关于组分夸克的有效哈密顿量算符，它隐含了胶子作用，并且准确至流-流耦合项；接着，通过参数化哈密顿量中的夸克作用关联核，导出平方禁闭势参数化选择的哈密顿量的具体公式和能隙方程；随后，应用公式，编程求解，考察了瞬时作用下和部分延迟作用下真空的正反夸克对凝聚，在计算中保留了空间流-流耦合作用；之后，导出瞬时势和延迟势下包含二体作用项的哈密顿量公式，并采用单体化近似，通过泛函变分方法得到核物质存在时耦合的非线性动力学方程；在保留部分空间双流耦合作用的近似下，求解核物质的动力学方程，考察核物质密度对真空凝聚的影响，以往考察真空凝聚，对关联核的选用，由于空间流-流耦合项不易处理，也认为作用不大，常忽略该项，并且常采用瞬时作用；本文保留空间双流项和部分延迟作用，考察了真空情形的夸克对凝聚，还考察了夸克质量对纯真空凝聚的影响，以往对核物质存在情形的真空凝聚考察很少，也都忽略空间流-流项，本文在考虑部分空间流-流项近似下，考察了核物质存在对真空凝聚的影响。

Nuclear science and technology have an important bearing on the future and sustainable development of our society. The study of health physics is a comprehensive subject that deals with the safe application of nuclear radiation in all areas.

核科学和核技术的应用与当今社会生存和可持续发展密切相关，保健物理学是保障核科学技术在社会各领域得以安全应用的综合性学科。

In 1938, germany scientist hendrik discovered nuclear fission. afterwards, denmark's bernar further discovered that nuclear fission generates extremely high energy. this energy started received attention from everywhere.

1938年德国科学家哈恩发现了核分裂现象，之后丹麦的伯尔更发现核分裂时会产生强大的能源，这种能源也开始受到各方的注意。

The changes included that the protrusions on the cell surface diminished, myofilaments and pinosomes in the myoepithelial cells of grade Ⅱ,Ⅲ atypical hyperplasia decreased, and the irregularity of the nuclear morphosis and the increase of nuclear heterochromosome were found.

乳腺不典型增生时肌上皮细胞数目增多，排列紊乱，电镜下可见：①细胞表面的棒状突起消失；②Ⅱ、Ⅲ级不典型增生时胞浆内的肌微丝和吞饮小泡减少；③细胞核增大，不规则，异染色质增多。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。