研究了黑麦草在铜矿尾矿砂与菜园土复合土壤上近一年多的生长状况及其影响因素。

This paper has studied the growth of ryegrass in mixed soil of copper mine tailing and garden soil as affected by some amendments including montmorillonite, rice straw and chicken manure.

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一年多的规划后，近四个月的最终低温(冷)测试和监测，该天文台科学仪器舱段的测试完成了。

After over a year of planning, nearly four months of final cryo (cold) testing and monitoring, the testing on the science instruments module of the observatory was completed.

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