查询词典 sumach

The sumach grew luxuriantly about the house, pushing up through the embankment which I had made, and growing five or six feet the first season.

黄栌树（学名Rhus glabra）在屋子四周异常茂盛地生长，把我建筑的一道矮墙掀了起来，第一季就看它长了五六英尺。

I dug my cellar in the side of a hill sloping to the south, where a woodchuck had formerly dug his burrow, down through sumach and blackberry roots, and the lowest stain of vegetation, six feet square by seven deep, to a fine sand where potatoes would not freeze in any winter.

我在一处向南倾斜的小山腰上挖掘了我的地窖，那里一只土拨鼠也曾经挖过它的丘穴，我挖去了漆树和黑毒的根，及植物的最下面的痕迹，六英尺见方，七英尺深，直挖到一片良好的沙地，冬天再怎么冷，土豆也决不会冻坏了。

They presently emerged into the clump of sumach bushes, looked warily out, found the coast clear, and were soon lunching and smoking in the skiff.

快走，哈克，我们在这里呆的时间太长了，现在不早了，我也饿了，等到船上就可以吃东西，抽香烟。

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。