Days get longer and nights get shoter in spring. Trees turn green and flowers bloom. It's my favorite season.

春天，白天越来越长，黑夜越来越短，树木变绿了，花儿也开了。

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Experiment results showed that WEDM in gas offers advantages such as better straightness, shoter gap length and higher meterial removed rate.

实验结果表明，气中加工的直线度好、放电间隙窄、加工速度（ 材料去除率）高。

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