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Those ions will perform stable oscillation nearby the beam orbit while their mass is larger than a critical mass. The accumulation of trapped ions nearby the beam orbit, interacting with beam, can cause the tune shift of beam, blowup of beam emittance, increase of local vacuum pressure, and can even lead to the occurrence of beam instability.

这些被俘获的离子在束流轨道附近的积累并和束流的相互作用，会引起束流振荡频率的漂移和展宽、束流发射度的增加、局部真空度的恶化等各种负效应，有时甚至会导致束流不稳定的发生，从而影响储存环的正常工作，在这种情况下采用离子清洗方法将离子清洗掉对保证储存环的长期、稳定的运行是必要的。

If we want to get the effective mass by the method of computing the meson self-energy , we need to consider the change of the effective mass of the nucleon along with the increasing density of the nuclear matter,namely considering the fluctuation of the vaccum.

很多研究[3，4，5，6，11，12]表明了上式描述的规律是正确的，如果用计算介子自能的方法来得到介子的有效质量，需要考虑核子的有效质量的随核物质的密度的变化，即需要考虑核子的真空涨落，当不考虑核子有效质量随核物质密度变化的时候，ρ介子、ω介子的有效质量一般是上升的。

With this method, the nextto-leading order Debye screening mass was evaluated within real time hot QCD. Since the gluon damping rate was included self-consistently on the internal line of the self-energy, the infrared divergences were removed without putting by hand in a nonperturbative magnetic mass as a cutoff, and the results are positive and gauge-independent. In addition, the selfconsistent calculation method of the damping rates of the fast moving particles in a QGP was suggested, the self-consitent equations were derived at finite tempeature without infrared divergences, and the approximation solutions were shown. Meanwhile the relaxation times of the gluons and quarks were estimated as τ〓～0.7fm/c and τ〓～1.5fm/c at energy scales of RHIC and LHC.

用这种自洽方法从实时热QCD出发用计算了QGP中次带头阶Debye屏蔽质量，由于自洽包含了胶子自能内线中横胶子的衰减率，克服了红外发散的困难，不必用手加的非微扰磁质量作截断，证明了得到的结果是正定的且规范无关，同时本文给出了QGP中快速粒子衰减率的自洽计算方法，推出了有限温度下快速粒子衰减率的自治方程且红外发散不出现，给出了方程的近似解，并估计了RHIC和LHC能标下胶子和夸克的弛豫时间分别为τ〓～0.7fm/c，τ〓～1.5fm/c。

Storage condition and available period of water spore, slant tube seed, plate colony and lyophilized vegetative mass were examined. The result showed the best seed style was lyophilized vegetative mass whose ability of high enzyme yield remains stable preserved at -20℃ for three months.

通过对水芽孢、试管斜面、平板菌落和冻干营养体保存条件及其对产酶能力影响的研究，确立冻干营养体为可直接用于摇瓶发酵的生产菌种，该菌种在-20℃保存三个月对发酵无不良影响。

The experiment's result shows that neural network used in the mass evaluation can effectively distinguish nut, screw and ball with different mass.

结果表明，神经网络用于跌落物质量估计是可行的，神经网络划分的结果能有效地区分不同状态下的螺母、螺钉和钢球。

BIA will underestimate the fat mass and body fat percentage and overestimate muscle mass and bone mineral content.

BIA与DEXA相比，可低估脂肪组织含量和脂肪百分比，高估肌肉组织含量和骨矿含量。

For instance, it is important to consider how one area or one mass organization should support the struggle waged in another area or by another mass organization, and how meetings of the masses and of their cadres and conferences of representatives--all of a specified size--should be held, etc.

例如，应该讲究这一区域对另一区域斗争的声援，这一群众团体对另一群众团体斗争的声援，召开必需的一定范围的群众会、群众干部会、代表大会等等，都是很重要的。

In effect, mass privatisation was mass murder.

大规模的私有化实际上是谋杀群众。

According to Fick's law and principle of mass conservation, mass transfer model for convective airflow drying of alfalfa was established for forecasting moisture distribution inside alfalfa stem .

根据斐克定律和质量守恒原理，建立了可以预测干燥过程中苜蓿茎秆内部水分分布的常压热风干燥的传质数学模型。

Models foe predicting how the discharge of conservative substance affects stream quality are invariably based on the law of conservation of mass, also referred to as the mass balance equation.

预言保守的物质的解除怎样影响溪的模型仇敌质量不变基于质量守恒定律，此外称为&质量平衡方程式&。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。