I have seen small population almost wiped out by fungus at the same time as dense aphis populations elsewhere . 我曾见到小的群体在其它任何地方的高密度蚜群被真菌杀死的同时差不多也被杀死了。
They gazed intently at the dense blue of the horizon, as if a little silhouette might appear there at any moment . 大家目不转睛地直盯着深蓝色的海平线，似乎那儿随时都可能出现一个小小的船影。
Trees develop numerous medium-sized branches and eventually become dense unless removal of some of these limbs is done . 树冠中数量众多的中等大小的枝条，如不去掉其中的一部分，最后会变得稠密。
As the accretion disk feeds more mass into itself, the embryo star contracts, growing ever denser and more massive . 随着吸积盘获得越来越多的物质，胚胎恒星就不断收缩，密度和质量都变得越来越大。
When an inhomogeneous plane wave is introduced into a dense dielectric layer, it can bounce between the two boundaries . 把一非均匀平面波引进折射率较高的介质层时，它会在上下界面间来回地“弹”射。
The reader of these pages in future years should realise how dense and baffling is the veil of the unknown . 在未来的岁月里，读者在读到这些章节时，可能感到那掩蔽着未知数的帷幕是多么严密和多么令人困惑。
In fact, in the very thick of the business part of the town, we commenced cutting our way with billhooks through the dense forest . 事实上就在城里商业区最繁盛的地方，我们开始用钩镰在密茂的森林中开辟道路。
What new information have we gleaned about the comparatively dense gas-dust complexes of the interstellar medium over the past dozen years ? 过去的十几年里，有关星际介质的较密气尘复合体我们探明了哪些新东西呢？
The morning breeze, drawing up from the sea, cut lanes through the dense marsh mist, here and there rolling them before it in great balls of fleecy vapour . 海上吹来的晨风，穿过沼泽地上的浓雾，卷起了大团大团的轻烟。
On all sides, wherever the eye turned, nothing met it be the mirrorlike surface of the lake, the placid view of heaven, and the dense setting of woods . 极目远望，映入眼帘的是一平如镜的湖水，宁静的苍空，郁郁葱葱的林带。
