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- Steihaug has shown that an approximate solution of the trust region problem may be found by the PCG method. 共轭梯度法由于不需要矩阵计算和存贮，成了解大型问题的首选方法。
- Further, we establish the duality programming and optimality conditions of the Celis Dennis Tapia trust region problem. 进一步建立了 Celis- Dennis- Tapia的信赖域子问题的对偶形式和最优性条件 .
- The TMG will work with the seven prefectures and cities to implement measures to combat this serious regional problem. 东京政府将与七个县市共同努力,采取措施对抗这一严重的区域问题。
- The new methods can resolve the unclassifiable region problems in the conventional multiclass SVM methods. 该算法解决了现有主要算法所存在的不可分区域问题。
- The poor air quality in Hong Kong and around the Pearl River Delta is not only a regional problem, but a global concern that could undermine the SAR's competitiveness. 国际货币基金会警告，香港和珠三角地区空气质素太差，不但是地区问题，而且是全球关注的问题，它将会削弱香港的竞争力。
- The development that city economy encircles already was a regional problem not just, need considers to develop countermeasure from national strategy level. 都市经济圈的发展已不仅仅是一个区域性问题,需要从国家战略层面来考虑发展对策。
- multi regional economic cooperation 多区域经济合作
- She says she expects that U.S. policy in Afghanistan will change - mainly because the new administration appears to be addressing the war against the Taliban as a regional problem. 她还表示，她预计美国对阿富汗的政策将会改变，主要原因是，新一届政府似乎要把对塔利班的打击作为地区性问题来解决。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- The earthquake may cause a region to fall in. 地震可以使一个地区下陷。
- Storms spring up easily in this region. 这个地区很容易发生风暴。
- He is earning a salary in the region of25,000. 他当时的薪金在25,000英镑左右。
- A storm that cut off power to the whole region. 切断了整个地区电力供应的暴风雨
- A planar region bounded by a circle. 圆形区，圆形空间被圆所包围的一个平面区域
- A vineyard or wine-producing region in France. 克鲁法国的葡萄园或葡萄酒生产区
- Food and fuel were scarce in this region. 这地区食物和燃料都很缺乏。
- There used to be a military base in the region. 这地区过去有个军事基地。
- He is an authority in the region of chemistry. 他是化学界的权威。
- Turn the mode dial to select multi exposure mode. 把模式盘转到多重曝光模式。
- I have a pain in the lumbar region. 我腰部疼痛。
