annual feed crop是什么意思

用法例句

The yield of the annual forage and feed crops mixture grassland in agro-pastoral transitional zone of Yanmenguan region in Shanxi was studied.

研究了雁门关农牧交错带不同一年生牧草及饲料作物混播草地的产草量。

Study on effects contrast of breeding Eupolyphaga sinensis Walker using different single forage and their mixture;

不同单一饲料及其搭配对养殖中华真地鳖效果的对比研究

The results showed: (1) Eupolyphaga sinensis Walker fed with mixed forage grown faster than that fed with single forage, the best result is the mixed forage containing 15.

采用单一饲料的玉米、麦麸、米糠以及由它们配制成的粗蛋白质含量分别为13。