上理想

They have many strange properties such as negative phase velocity, negative refractive index, perfect imaging, inverse Doppler effect and abnormal Cerenkov radiation.

负折射率介质最早由前苏联科学家Veselago在20世纪60年代从理论上提出来的，是一种具有介电常数ε和磁导率μ同时为负值的介质，它具有诸如负相位速度，负折射率，理想成像，逆Doppler频移及反常的Cerenkon辐射等多种奇异的物理现象。

Dell's small and medium-sized department Vries in a conference call, said: I am not in the forecast, this is Dell's vision and plan.

戴尔公司中小企业部门负责人弗里斯在一次电话会议上表示：我并不是在进行预测，这是戴尔公司的理想及计划。

The theoretical results of the atmospheric Cherenkov images of a muon on the focal plane of a reflector are given under the ideal conditions.

给出理想条件下聚光镜焦平面上单个μ子大气契仑柯夫光像的理论结果。

In the early 1950s, the U.S. government pursues and the Truman Doctrine to contain communism and McCarthyism, the Cold War intensified international and domestic repression of the progressive forces, the terror of nuclear war hung over everyone's heart with some people a false picture of peace, living a life Hunhunee; some other people Could not vulgar, hypocritical Shidao, want to resist, but the lack of bright ideals, can not find a way out bright.

五十年代初美国政府奉行杜鲁门主义和麦卡锡主义遏制共产主义，国际上加剧冷战，国内镇压进步力量，核战争的恐怖笼罩着每个人的心灵有些人粉饰太平，过着浑浑噩噩的日子；另有些人看不惯庸俗，虚伪的世道，想要反抗，却又缺乏光辉的理想，找不到一条光明的出路。

Using hundreds of computers, Choptuik and Pretorius calculated the gravitational interactions between the colliding particles and found that a black hole does form if the two particles collide with a total energy of about one-third of the Planck energy, slightly lower than the energy predicted by hoop conjecture, as they report in a paper in press at Physical Review Letters .

超普图伊科和佛朗斯使用数百台计算机计算碰撞粒子之间的重力的交互作用，他们发现，一旦碰撞粒子的总能量达到&普朗克能量&的三分之一，黑洞就可以形成，比连环推测预言所需要的能量要稍小一点。他们在《物理评论快报》上发表了这一实验结果。，所以容易被曲解为产生了理想的效果。

At the rear was an innovative combination transaxle with the gearbox, clutch, differential, and inboard-mounted drum brakes.

在后面是与变速箱，离合器，差的创新结合变速，和内侧安装鼓式制动器。

For more people can apprecaite and have the master work, there is reproduction painting appears in the market, the large various selection of paint,the high saturation of color plus the plentiful sfumato, to make the reproduction perfect copy and detail as original painting, so as to meet the requirment of amateurs who love art paintings,they do not need to pay high price to get classical paintings.

颜料色域广，色彩饱和度高，色彩层次丰富，图像色彩还原真实，能完美的复制原作，满足艺术爱好者欣赏，艺术爱好者们不用支付昂贵的价格就能拥有经典油画。