查询词典 palm fern

It is a primitive tree-fern of value in scientific research, and also can be used as an ornamental plant for growing in sheltered places.

黑桫椤属植物起源古老，具有科学研究价值，本种亦适合栽培於阴湿处供观赏。

Rolled up in the form of a coil with the tip in the center, as an unexpanded fern ''.

拳卷的，旋卷的卷成线圈样式，其尖端在中间的，如未展开的蕨叶的

Epiphytic on tree trunks covered with a bird's nest fern and leaf, such as unicorn plant, some leaves still busy with a large grow Epiphyllous Liverworts.

树干上布满附生的鸟巢蕨和麒麟叶等植物，有的叶片上还密密麻麻地生长着一大片叶附生苔类。

You will be marveled at the amazing sceneries like old-aged rattan, thousand years fern, huge magic fungus, upas and other wonders of tropical rainforest.

在这里，百年古藤、千年古蕨、巨大的仙草灵芝、"冷血杀手"见血封喉以及热带雨林的六大奇观等，更是让你惊叹不已

Why did gorgeous usurer nurture these fern s for your pleasure?

那位讨人喜欢的放高利贷的人为什么培育出这些蕨类植物让你来享乐？

Ice-crystals, shaped like fern-leaves, were sprouting over the windowpanes and concealed from me the Seine with its bridges and the Louvre of the Valois.

冰晶体，像蕨类植物的叶子形状，萌发了在窗玻璃和我与它的桥梁和瓦卢瓦卢浮宫塞纳河隐蔽。

Any of several small tufted fern s of the genus Woodsia,having pinnately divided fronds and growing in cool,rocky areas.

岩蕨属一种岩蕨属的小且丛生的羊齿植物，有裂开的羽状叶，生长在荫凉的、多岩地区

Others contemplate azolla — an aquatic fern fed to cattle in the hopes of increasing milk production.

其他人则仔细研究称为满江红的一种水生蕨类，希望用它餵牛能提高牛乳产量。

Certain N-fixing cyanobacteria also form a symbiotic relationship with the water fern Azolla in rice paddy systems.

一些固氮的兰细菌也能在水稻田里与水生蕨类红萍形成共生关系。

Azolla,a symbiosis of blue green alga and aquatic fern,widely distributesin rice paddy fields,lakes and swamps.

萍是固氮蓝藻与蕨类植物的共生体，广泛分布于稻田、湖泊及沼泽等水生生态系统。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。