Most of the time they pass through, teetering on a steep hillside where they spend the morning hunched over to find the fungus's crooked black stem poking through the dirt.
但大多数时候，他们只是从这个搭建在陡峭山坡上的帐篷前路过，整个上午都在弯着腰寻找这种真菌露出泥土的弯曲黑茎。
The scientists think that these circles stem from the results of collisions between supermassive black holes that released huge, mostly isotropic bursts of energy.
科学家们认为这些圆环结构可能来自超大质量黑洞碰撞产生的强大，并且大部分显示各向同性的能量爆发。
Exploring the woodlands on a warm summers evening, he spotted this lone caterpillar delicately balanced on the stem of a black alder leaf.
在一个温暖夏天的夜晚他探究森林，发现一条孤零零的毛毛虫微妙的平衡在一个黑色桤木叶的茎上。
Growth process of height, diameter and volume of the largest two stems of some sampled black locust stands on Weibei-loess plateau were described by analyzing stem disks and growth rings.
通过对渭北黄土高原刺槐人工林最大林木的树干解析和年轮分析描述了林分最大两株林木的树高、直径和材积生长过程。
More than 30 kinds of diseases and pests have been reported, but the damage of sweetpotato black rot, sweetpotato root rot, sweetpotato stem nematode and sweetpotato bacterial wilt is serious.
我国甘薯病虫害危害严重，已经发现报导的有30多种，其中发生比较广泛、为害比较严重的有甘薯黑斑病、甘薯根腐病、甘薯瘟病、甘薯茎线虫病。
More than 30 kinds of diseases and pests have been reported, but the damage of sweetpotato black rot, sweetpotato root rot, sweetpotato stem nematode and sweetpotato bacterial wilt is serious.
我国甘薯病虫害危害严重，已经发现报导的有30多种，其中发生比较广泛、为害比较严重的有甘薯黑斑病、甘薯根腐病、甘薯瘟病、甘薯茎线虫病。
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