多脉的

Presented with early artery enhancement and immediate wash out ,Two cases presented with wash in quickly and wash out slowly .The enhancement pattern of 36 liver metastatics cases was divided into the little blood provides group and the much blood provides group . The 5 cases of haemangioma were enhanced centripetally in portal phase and washed out after several minutes without arterial enhancement.

通过造影后的表现还可明确提示以下几个方面：（1）肿块内的坏死区；（2）在延迟相发现了肝内小转移灶，从而改变了临床治疗方案；（3）滋养动脉的显示；（4）门脉内栓子的鉴别诊断。36个转移性肝癌病灶分为少血供转移癌组和多血供转移癌组。6例肝血管瘤中5例均表现为向心性环行持续缓慢充填，另一例9mm的小血管瘤表现为完全、快速向心填充。

Researches on the earth's land surface processes and the geological environment essential factor and its dynamic mechanism have demonstrated that only with the equilibrant system of the low-temperature and low-stress and the scattered as well as dense multi-grains, the boundary condition for the slow, long-term and intermittent pulsation action can meet the formation conditions of such a rock deformation structure.

通过物理模型分析和试验变形比对等综合材料证明，变形砾石是遭受了既密集、又分散、还具有同时发生作用的长时期的多边界外力条件及平衡力系，内部形成破裂其应力传递过程和性质改变与变形形迹转变及其做功连续扩展，是由低于疲劳极限的具有脉动性作用微弱应力造成的。

Recently, mud pulse modulate means of wireless has been paid attention; current transmitter technology also has been more and more extensively used in industry condition, because of its stronger anti-jamming and farer transmission distance.

近年来，无线传输中的泥浆脉宽调制方法引起各方关注，电流环技术由于它的抗干扰性强、传输距离远，也越来越多的被应用在工业环境的信息传输中。

The land-sonar is presented in this paper, which is based on the principle of elastic reflection wave and is a method of geological forecasting in tunnel construction.

作为地震反射法一个变种的陆地声纳法，是一种易掌握、仪器轻便的隧道掌子面前方地质预报的方法，它用锤击震源在隧道掌子面上设排列和测点工作，在预报岩溶、断层及破碎带、岩脉等方面成功地进行了20多个工区的预报，1995年通过了铁道科学院和铁道部鉴定。

Spores,the structure of leaf epidermis,the transverse section of stipes,the rhizome scales and the venation patterns were selected for study.Several of these characteristics were studied in detail for this group for the first time.Morphologically and phytogeographically,the phy...

结果表明，在该亚科植物类群中，主要分布于亚洲亚热带地区的篦齿蕨属、拟水龙骨属和水龙骨属的亲缘关系较近，而主要分布于亚洲热带地区的棱脉蕨属和亚洲温带地区的多足蕨属的系统位置则分别较孤立。

To eliminate common-mode voltage of cascaded multi-level inverter, three kinds of phase-difference SVM based on left and right bridge vectors are proposed firstly. From these three modulations, equivalent SPWM components are deduced, and the unipolarity and bipolarity of output waveforms are analyzed. 2π/3 PD-SVM (phase-difference space vector modulation) is testified be unipolar.

为消除级联型多电平逆变器的输出共模电压，首先提出了基于左、右桥臂矢量的三类相差空间矢量调制(space vector modulation，SVM)技术，数学推导出三类调制技术的等效正弦脉宽调制(sine pulse width modulation，SPWM)的调制波，并分析了其各自相电压输出波形的单、双极性，证明2π/3相差SVM必为单极性调制。

On the other side, the relations among community classification, structure, diversity and distribution pattern were also investigated through the study of species composition, diversity and interspecific relation of Medicago falcata in Inner Mongolia.

另一方面，本文又以松嫩平原天然草地中的五脉山黎豆、多茎野豌豆、花苜蓿以及内蒙古的黄花苜蓿为研究对象，从植物群落的物种组成、多样性、种间关联等几方面探讨了我国天然草地中豆科牧草的群落类型、结构、群落多样性与分布格局之间的关系。

Based on Stuart et al.'s electron density evolution equation, the electron density evolution process in fused silica film irradiated by short-pulse laser for τ∈[0.015] ps were studied by means of numerical method. The effects of initial electron density N and laser pulse width τ on laser threshold intensity I and damage threshold fluence. F were analyzed respectively.

基于STUART等人的电子密度演化方程，运用数值模拟方法，研究了脉宽为τ∈[0.01， 5]ps范围内单脉冲激光作用下熔融石英薄膜中电子密度演化过程；讨论了初始电子密度、激光脉冲宽度对阈值功率密度和阈值能量的影响；分析了初始电子密度、激光脉冲宽度对多光子离化及雪崩离化的影响。

Learning about these rules and honestly employing them can improve your chances of finding that great new job, getting the promotion you deserve, becoming a more effective networker and generally increasing your influence at work.

学习这些规律并诚实地利用这些规律可以让你有更多的机会找到好工作、获得你应有的升值、更有效地建立人脉关系并增加你在工作中的影响力。

The success of this book is the philosophy of Chinese and foreign well-refined, is a life experience and foreign successful people the profound conclusion, with strong practicality and maneuverability, the content includes: practical action, thinking success , hard insisted that physical fitness, cherish your time and reflect on self-expanding network of contacts, knowledge, updates and so on, all-round, multi-level, to guide the reader how to make good use of every day, how to progress a little bit every day.

本书是对中外成功哲学的精心提炼，是对中外成功人士人生经验的深刻总结，具有很强的实用性和可操作性，内容包括：踏实行动、思考致胜、勤奋坚持、强身健体、珍惜光阴、反省自我、扩大人脉、知识更新等方面，全方位、多层面地指导读者怎样利用好每一天，怎样每天进步一点点。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。