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。
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。
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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