查询词典 marsh fern

But we fell into a communal quiet with an occasional appreciative whistle at the dizzying diversity of plants as the path led us from arid scrub to evergreen oak forest to pine groves draped in lime green lichen, through towering rhododendron and fir trees and ending in a chaotic mix of hemlock, bamboo and fern.

沿途先是抗旱的灌木﹐接着是长青的橡树森林﹐更下来是松树林﹐披着柠檬绿的地衣。我们也经过高大的杜鹃花和桦树﹐最后是栂树、竹子和蕨类植物混成一片。

Feathery fern of tropical Asia and Malaysia.

亚洲和马来西亚的一种羽状蕨类。

In former classifications: comprising plants with a vascular system including ferns and fern allies as well as seed plants.

用于旧的分类中；由有维管的植物组成，包含蕨类和蕨类联盟以及种子植物。

Any of various vascular plants,including seed plants and fern s,having a conducting system of xylem and phloem.

导管植物任何种类的维管植物，包括种子植物和蕨类植物，具有木质部和韧皮部导管系统

Fern plants a seed head.

种子蕨植物的一目。

"He's got to go, Fern," he said.

"他必须得走，芬，"他说。

It's our love fern.

这是我们的爱之蕨

"Fern," he said gently,"you will have to learn to control yourself."

"芬恩，"他温和地说道，"你得学会控制自己了。"

Keep your travel budget low - make your comfortable vacation or business stay in Fern Down cheap.

令您旅途省钱，在柏林度过舒适的假期或商务旅行。

I don't know if he went to pick fern yet.

不知道他是否采tobwo去了。

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。