查询词典 sheath

Culm internodes without spots; culm sheath oral setae to 2 cm; pseudopetioles villosulous, leaf blade secondary veins (3 or)4- or 5(or 6)-paired, tessellations rectangular.

没有点节间的Culm；竿箨口头的刚毛到2厘米；假梗微柔毛，叶片次脉3或4或5(或6配对，棋盘花纹矩形。 46 Y。 straminea 黄壳竹

Culm internodes initially purple spotted; culm sheath oral setae 3–6 mm; pseudopetioles glabrous, leaf blade secondary veins 5–9-paired, tessellations square

节间的Culm 最初紫色斑点；竿箨口头的刚毛3-6毫米；无毛的假梗，5-9配对的叶片次脉，棋盘花纹广场 47

Armored cable is intended for use in direct-burial applications; the steel armor protects the sheath from damage during installation.

铠装电缆用于直埋方式，钢包皮层用于保护电缆外套在安装过程中不受损坏。

In outside cable an armored cable has its sheath covered with three protective layers: a vinyl jacket, a steel wrap, and another vinyl jacket.

电缆外部，包皮层电缆的外层共有三层保护层覆盖：一层是乙烯基护套、一层是钢外套，另一层是乙烯基护套。

The analytical expresses of scattering field are obtained based on the boundary condition of a sheath helix model. The effects of the pitch angle and the electrical size of the helix on the resonant behavior are also investigated. It is shown that the resonant behavior of the forward/back scattering far field only depends on the pitch electrical size and the radial electrical size, and that the turn of the helix has no effect on the resonant behavior.

根据sheath螺线管模型的边界条件获得了散射场的解析表达，同时研究了螺线管在共振状态下电角度及螺间距的影响，表明远场的前后向散射的共振状态只依赖于间隙的电场大小及径向的电场大小，而螺线管的倒转不影响谐振状态。

Nevski in vitro and selected several favorable media.Germ-free plants were produced with germination on MS medium. Callus was induced with B5+1.5 mg.L-1 2,4-D+0.5 mg.L-1 NAA,with leaf sheath and hypocotyls as explants.

Nevski种子消毒并在MS培养基上萌发获得无菌苗，以幼苗的叶鞘和胚轴为外植体诱导愈伤组织，经继代后进一步诱导不定芽及生根。

Based on this device the experimental study of plasma diagnostics and sheath propagation dynamics were made by using Langmuir probe.

利用Langmuir探针测量方法对该系统进行了等离子体诊断和鞘层扩展动力学的实验研究。

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。