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A variatioual calculation of the energy of the-2s2 is state of helium has been carried out with the use of a wave function of the Hylleraasian typo. The wave function is where s,t u are in units of 4 times the first Bohr radius of hydrogen.

本文以变分法计算2s~21~S态氦原子之能量，所用之波函式，即：=e~(-0.2278s){1-0.17079s-0.063155u-0.013869t~2 +0.010044u~2+0.0064785s~2}上式中之s，t，u均以4倍於氢原子之第一Bohr半径为单位。

Charging a method of unbalancing (using one's shoulder and arm ) the player who has possession or is attempting to gain possession of the ball Close down to pressure the player with the ball immediately by getting as close as possible, without letting the attacker get past Collecting the technique of catching a soccer ball with some part of the body and bringing it under control Create space move into a new area, sometimes taking opponents with u, allowing a teammate to use the open space just vacated.(space can also be created for yourself by moving away from an opponent or teammate) Cross a kick into the middle of the goal box, a pass from an attacking player near the sideline to a teammate in the middle or opposite side of the field.

充电失衡(使用one's 担负和胳膊)有财产或试图获取球的财产的球员方法尽可能关闭立刻迫使球员与球由得到一样紧密，没有让攻击者通过收集技术拿到一个足球以某些身体部位和使它在控制之下创造空间移动入一个新区域，有时需要对手以u，允许队友使用露天场所被出空(空间可能并且被创造为你自己由行动从对手或队友)横渡反撞力入目标箱子，一张通行证的中部从一个攻击的球员在边线附近对一个队友在领域的中间或反面。

In the U.S., where courts recently ruled in a case against Cablevision that network PVR services aren't legal, much of what makes the China service attractive, including low-cost set-top boxes, won't work, Hawley pointed out. In addition, a U.S.

美国法庭最近裁决Cablevision所提供的"基于网络的影像录制功能" network PVR是不合法的，而这个PVR的功能是中国IPTV服务的很重要的一个功能，同时在美国，象中国这样低成本的机顶盒用户几乎是不可接受的。

It's a window on what we can expect when the U.S. starts draining liquidity,' says Barry Knapp, U.S. equity strategist at Barclays Capital.'There are two places in the world where monetary policy was incredibly aggressive, one was the People's Bank of China…and the other was the Fed.

巴克莱资本美股策略师奈普说，透过这种现象，我们可以看到美国开始回收流动性时会发生什么；世界上两个地方的货币政策之激进程度令人难以置信，一个是中国人民银行，另一个就是美联储。

Ambassador Reyes Matta emphasized Chile's potential as a trade platform for Chinese companies, which can use the country's wide network of agreements to launch its products to bigger markets such as the U.S. and the E.U. under preferential terms.

雷耶斯马塔大使强调，智利具有成为中国企业的贸易平台的潜力，可以利用与多个国家的自由贸易协定，在优惠的条件下，向诸如美国和欧盟等更大的市场投放自己的产品。

The skill sets needed to penetrate a network for intelligence-gathering purposes in peacetime are the same skills necessary to penetrate that network for offensive action during wartime, notes a recent congressional report on China's alleged clandestine cyberattacks in the U.S. According to the report, released in October by the congressionally mandated U.S.

和平时期这些手段能够用来侵入网络，收集情报，在战争时期就可以用同样的手段侵入网络，做出攻击，一份最近的美国国会报告中如是写道，这份报告就是关于中国对美国实施的所谓秘密网络攻击。

The president's comments came as the price of crude oil reached a new record above $119 a barrel and the U.S. dollar hit a record low against the euro. The U.S. housing market also continues to drag down the economy. Home sales and prices fell again last month with banks repossessing more and more homes as owners default on their mortgages.

布什讲话的时候，原油价格已经突破了新的记录，每桶原油的价格超过119美元；美元对欧元的汇率也创下了新的最低记录；美国房地产市场还在继续拖累经济，房屋销售和房屋价格在3月份继续下滑，房主在偿还抵押贷款方面违约，越来越多的房屋抵押赎回权被银行收走。

He told reporters U.S. leaders were unhappy when Chinese officials denied permission last November for the U.S.S. Kitty Hawk to make a port call in Hong Kong.

他对记者说，去年11月中国官员拒绝美国海军&小鹰号&停靠香港的时候，美国领导人感到不悦。

From late 1940"s, the Soviet Union posed a serious threat to Turkey. During the Turkish Straits Crisis, The U.S. protected Turkey from the Soviet Union"s threat and declared The Truman Doctrine which offered Turkey a great deal of economic and military aid. In 1952 Turkey was admitted to NATO, so the strategic relationship of U.S.-Turkey Alliance was set up.

苏土关系的急剧恶化使得土耳其无法继续奉行战时的中立政策，在这场区域性的土耳其海峡危机中，美国出台了注入独特外交的&杜鲁门主义&促使两个实力相差悬殊、发展不平衡的国家迅速建立起了战略同盟关系。

"It's a great opportunity for us to talk directly with PLA officers, with senior, mid-grade PLA commanders," said U.S. Army Lt. Col. Roger Cavazos, senior China country director at the U.S. Pacific Command.

&这是一个很好的与PLA中高级官员直接对话的好机会&太平洋司令部中国区高级指挥官Roger Cavazos说。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。