Through fixed field experiment and determinations of soil moisture, the field water utilization efficiency of wheat and rape seeds was discussed under no tillage and straw mulching.

通过田间定位试验和土壤水分的测定，探讨了免耕和秸秆覆盖还田对小麦、油菜土壤水分利用效率的影响。

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The result showed that the treated wood had good dimension stability, and the moisture Absorption recovery ratio of thickness was 2.68%, which indicated that the set of compression was almost fixed.

结果表明：处理材的厚度吸湿回复率为2.68%，具有良好的尺寸稳定性，说明压缩变定效果好。

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To clean off the moisture on the surface of the copper rod, a blower is fixed at the end of the guiding pipe.

收线导管出口处装有吹水装置，以清除铜杆表面水份。

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