Taking jack as an example, the selective principia of software tool and lectotype project was analyzed, the facture process of simulating water flow and enlarging sample for spring was presented.

并以千斤顶为例，分析了工具软件和选型方案的选择原则，给出了放样弹簧、模拟水流等的制作过程。

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It was a fine day in spring. Jack went to the beautiful garden with his parents. The family were working in the garden. They were planting some flowers there.

春季的一天，天气晴朗。杰克和他的父母去了漂亮的花园。全家人在花园干活，他们去种一些花。

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Jack: I like spring and summer.

杰克：春天和夏天。

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Set to a soundtrack of pounding tribal drums, Proenza Schouler's Jack McCollough and Lazaro Hernandez's spring show was a veritable luau of pareu skirts, hibiscus blooms and tiki imagery.

WSJ: Spring Fashion's Endless Summer

One reason it is especially smooth is because it is triple distilled, using a mix of traditional pot stills and modern column stills, and like Jack Daniels here in the States, it is made from local spring water and filtered through charcoal after distillation, removing additional impurities.

FORBES: Two Unique Irish Whiskies To Try This Year!

William Jack, chairman of the Tay District Salmon Fisheries Board, said catches of spring salmon rose in size to more than 12lbs last year, compared with 10lbs a few years ago.

BBC: River Tay salmon fishing season gets under way