develop vt. 1.使发达,使发展;使发生;使进化。 2.开发,开展,扩大。 3.【摄影】使显影。 4.【军、数】展开。 5.使显出,产生,研制,发现(新事实)。 6.〔美国〕揭露,暴露。 develop industry and agriculture simultaneously 工业与农业同时并举。 develop a mine 开矿。 a motor that develops 100 horse-power 一百匹马力的发动机。 vi. 1.发育;发生,进化。 2.发展,发达 (from);发达成 (into) 。 3.(剧情等)展开;(局面)进展;(像)显现出来。 4.〔美国〕(新事实等)发现,出现。 a developing country 发展中的国家。
But as metamaterials show , chemistry is not the only path to developing materials with an interesting electromagnetic response 不过,超材料的存在也表示,要发展具有特定电磁反应的材料,化学并非唯一途径。
High polymers material is a new developing material in 20 centuries , three big kind of basic materials of high polymers are plastics , rubbers and fibers 高分子聚合物(高聚物)材料是20世纪发展起来一大类新材料,高聚物的三大基本材料是塑料、橡胶和纤维。
Soon after the war , newly developed materials such as styrofoam , polyester resin and fiberglass cloth found their way into surfboard construction . enterprising veterans such as dale velzy and malibu joe quigg began to craft boards that were radical departures from the old pre - war planks 独具商业头脑的制板专家们如戴尔维尔基dale velzy和马利布malibu乔克维格joe quigg开始制作与战前的冲浪板截然不同的新型板。
Pulse electric current heat treatment ( pecht ) developed by sodick , ltd . , of japan , is a recently developed material processing method which consists of spark plasma sintering and welding , plasma activated sintering and welding , big pulse electric current ( bpec ) diffusion welding etc . the following are basic merits of pecht : rapid heating and cooling ; short sintering or welding time ; lowering sintering or welding temperature 脉冲电流热加工( pulseelectriccurrentheattreatment ,比如烧结,焊接等)是九十年代发展起来的一种材料快速制备新技术,它包括放电等离子烧结与焊接、等离子活化烧结与焊接、脉冲大电流扩散焊接等。它具有升温、降温速度快、能在较低的温度下烧结或焊接以及时间短的特点。
According to the present condition of the packaging cad , the paper analyzes necessity and possibility of developing material module of 3d packaging cad , provides the viable method on theory , sums up experiential model and puts forward concrete method . first , the paper analyzes how to establish the 3d model for material function studying by using computer graphics technology and reasonable date - construction 本文从目前包装cad的现状出发,分析了开发三维包装cad系统材质功能模块的必要性和可行性,为三维包装cad系统材质功能模块的开发从理论上提供了可行的方法和总结出经验模型,并且编程实现了这些模型,进而为开发商用三维包装cad系统软件中的材质功能提供了基础。