sheath

名词鞘; 护套; 叶鞘; 紧身装

动词包，盖

1. 鞘：将模型平放,让牙合平面与牙长轴尽可能垂直,用带加强鞘(sheath)的铅芯描计杆(carbon marker)画出基牙的观测线. 此时的观测线为牙体的最大周径线. 倾斜模型,确定就位道,在就位道方向上画出基牙、余留牙和粘膜区观测线. 结合两条观测线,

2. 外皮：MI电缆 (MINERAL-INSULATED CABLE)系指以无机物做为绝缘,以铜 金属外皮(Sheath)做为气体及液体之密封之电缆. 在危险气体,蒸气场所设施线路时,限按金属管或电缆装置法施工,依 金属管施工者应符合左列要求: 一、金属管必须为厚金属导线管之规格者.

3. 护套：数据线缆的保护套(sheath)在物理上分为两部分:绝缘层(insulation)和外套(jacket),线缆是否具有防火功能主要取决于最外一层护套的材料. 总体而言,数据通信电缆的外皮有4种:1、聚氯乙烯(PVC)材料,容易燃烧且会产生有毒气体.

4. 套：屏蔽式双绞线(STP)具有一个金属套(sheath),对电磁干扰EMI(Electromagnetic Interference)具有较强的抵抗能力,适用于网络流量较大的高速网络协议应用.

1. (刀、剑的)鞘，套
    A sheath is a covering for the blade of a knife.

2. 保险套;避孕套
    A sheath is a rubber covering for a man's penis and is used during sex as a contraceptive or as a protection against disease.

1. She appears wearing a magenta silk sheath dress by Jason Wu, who also designed her inaugural gown.

2. The favorite style for the silk reptile and seashore prints is an overly loose sheath.

3. People should sheath the knives as a measure of protection, said the local police.

4. 911查询·英语单词

4. Autumn is one of the best times to go, while winter will sheath the land in a pristine blanket of snow.

noun