This paper preliminarily analyzed the advantage of a reactor core with rod type element in tight triangle lattice, and briefly introduced its application in small and medium nuclear power plants.

初步分析了以正三角形栅格紧密排列组成的棒形燃料组件和堆芯的优越性。简要介绍了稠密栅在中小型核动力装置中的应用。

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Featured by tight shut-off, this kind of control valve is suitable for applications with relatively low differential pressure. It is suitable for controlling medium flow or pressure.

该类型调节阀适用于工况压差较小的场合，关闭严密，适用于对介质流量或者压力的调节。

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Therefore, Jixi basin is difficult to form large areas of deep basin gas, but, in the local economic value of small and medium tight sandstone gas reservoirs can be formed.

因此，鸡西盆地难以形成类似川西坳陷的大型致密砂岩气藏，但在成藏条件优越的局部地区可形成具有经济价值的中小型的致密砂岩气藏。

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Optimism is not warranted, though, as fundamental factors are poised to keep the market tight and prices high in the medium to long-run.

FORBES: Global Food Price Stable In April Despite Supply Fears

He is of medium build and was wearing a dark hooded sweatshirt with the hood pulled tight across his face.

BBC: Police warn 'lock car doors' after attack on woman

In a 10-inch ovenproof pan with a tight-fitting lid, briefly heat the cumin, coriander, and cardamom over medium heat to toast, shaking the pan to prevent scorching.

NPR: Recipes: 'Screen Doors and Sweet Tea'