查询词典 marsh fern

Standing in the centre the sky overhead was met by a circular horizen of fern: this grew nealy to the bottom ot the slope and abruptly ceased.

站在洼地的中间，头顶的天空被四周地平线上的蕨丛圈成了一个圆形：蕨丛几乎一直长到了坡底，随后就截然而止。

The entire shoot apex of a horsetail could fit into the large apical cell in the growing tip of a fern.

木贼的整个茎尖可相当于蕨类生长锥中大的顶端细胞。

Indusium The flap of tissue, derived from the placenta, that encloses the developing sporangia in the sorus of a fern.

囊群盖：是一种起源于胎座的瓣片状组织，覆盖在蕨类植物孢子囊群中正在发育的孢子囊上。

Fern species are usually distinguished by their leaf shapes, venations, scales, sporangia, and indusium, etc.

蕨类又分为真蕨和拟蕨两类；前者孢子囊生长在叶片，包括一般常见的蕨类；后者的孢子囊长在茎干上，包括其他石松科、卷柏科、水韭科及木贼科。

The jacaranda is a large deciduous tree with fine-textured, fern-like pinnate leaves.

蓝花楹是一种大型落叶树木，带有纹路清晰的以及类似蕨类复羽状树叶。

For a longer stay, visit the Tall Trees Grove, drive Howland Hill Road, and end your visit with a splash in a kayak on the Klamath River or a jouncy drive to Fern Canyon and Gold Bluffs Beach.

想留久一点，去参观高树林，沿着好兰德山坡公路走，直到在克拉马斯河划完爱斯基摩人的划艇之后结束，或者颠簸着开车去蕨类植物大峡谷和金碧沙滩。

In the study on the fern population structure, we through the analysis of the variation in height structure, leafstalk diameter structure and age structure in various forest communities, found the rule of variation of population, and discussed the reasons of variation of population structure, and explored the suitable habitat of various forest ferns.

在蕨类植物种群结构的研究中，我们通过对不同群落中蕨类植物种群高度结构、叶柄直径结构和年龄结构的研究，发现种群结构变化的规律，找出种群结构变化的原因，探索出各种蕨类植物种群的适生生境。

These landscape plant resources are classified as 6 groups by their morphological characteristics, namely fern, arbor, shrub, liane, herbage and cover plant.

对武汉市黄陂区野生园林植物资源进行野外实地调查，发现黄陂区有观赏价值的野生植物158种，根据观赏习性将其分为观赏蕨类、乔木类、灌木类、藤本类、草本类、地被类共6类。

Scenic forest resources are extremely rich, in which the Chinese double-leaf fern, Tapiscia tree, Liriodendron chinense, yew and other particularly rare.

景区内森林资源极为丰富，其中的中华双扇蕨、银鹊树、鹅掌揪、红豆杉等尤为罕见。

I have not heard so much as a locust over the sweet-fern these three hours.

有时我有一个钓鱼的伴侣，他从城那一头，穿过了村子到我的屋里来。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。