单词：sequential cropping
连作
sequential cropping的用法和样例：
例句
- The allelopathic effect of continuous cropping soil of Panax notoginseng was investigated and its mechanism was revealed initially.摘要探讨三七连作土壤的化感作用，初步揭示三七连作土壤化感作用的机制。
- Variation of culturable microbial population structure and essential soil enzyme activities were investigated with continuous cucumber cropping.摘要利用平板培养法对黄瓜连作根系微生物种群连续性变化进行了跟踪研究。
单词：sequential cropping 相关文章
[00:00:01] I am in hot water now, all the things seem to be blown up. 我现在遇到麻烦了，好像所有的事情多和我作对似的。 [00:09:03] Do not be scared. 别泄气， [00:10:25] Bite the bullet and everything will be right again. 咬紧
发表于:2018-12-03 / 阅读(142) / 评论(0)
迷你对话学地道口语
迷你对话学地道口语
Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到 听力原文收集区 ，您将会获得10到30积分的奖励! Thank you！
发表于:2018-12-30 / 阅读(156) / 评论(0)
单词解析速记
单词解析速记
This is the VOA Special English Agriculture Report. Strip cropping Nigeria is the world's largest cowpea producer. Cowpeas are also called black-eyed peas. But there is always room for improvement. Recently, before the start of another farming seaso
发表于:2019-01-11 / 阅读(143) / 评论(0)
VOA慢速英语2007年（九）月
VOA慢速英语2007年（九）月
拓扑排序 topological sort 偏序 partical order 拓扑有序 topological order AOV网 activity on vertex network AOE网 activity on edge network 关键路径 critical path 匹配 matching 最大匹配
发表于:2019-02-01 / 阅读(165) / 评论(0)
实用英语
实用英语