- 重点词汇
- isvt.& vi. 是(be的三单形式);
- theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
- made of由…组成,由…构成;
- ofprep. 关于;属于…的;由…制成;
- alloyn.合金;(合金中的)劣等金属;搀杂品;成色;
- metaln.金属;金属元素;成色;金色;
- lotn.全部,整个;(一)组,批;一块地; 命运;一件(或成组的一批)拍卖品;
- itemn.条,条款;项目;一则;一件商品(或物品);
- 相关例句
在镀层存在缺陷时, 镀金、镀镍层均促进柯伐合金的应力腐蚀开裂.
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The strengthening mechanism of iron grain nickel coating was studied.
研究了镀镍铁粉对材料性能的影响,探讨了镀镍铁粉增强机理.
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Causes for defective nickel deposits were discussed and solutions were presented.
探讨了镀镍层常见缺陷的原因并提出了解决方法.
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This paper analyses the structure and properties of nickel-plating and boronizing layer.
分析研究了镀镍渗硼层组织结构和性能特点.
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Formula of Aminosulfonate nickel plating on discrete parts was described.
介绍了用于分立器件的氨基磺酸盐镀镍工艺.
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The upper limits of Cr ( III ) concentration in different Cr-plating processes are different.
不同镀铬工艺所允许的三价 铬含量 上限各不相同,过多均有害.
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To plate metal is to cover it with a thin layer of gold, or silver, etc.
电镀金属就是把金属薄薄地覆盖上一层金或银等.
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本文介绍了该测量仪的研制目的 、 工作原理和电路组成.
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The advance measuring instrument have guaranteed the out quality of the products.
严格的检测手段、先进的测量仪器,确保了产品的优秀品质.
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So it is used instead to calibrate more practical current-measuring instrument, called ammeters.
因此,它只用于校准更实用的测量电流的仪表――安培计.
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Doubts were expressed concerning the validity and reliability of the primary measuring instrument.
人们对最初的测量工具的效度和信度产生了一些怀疑.
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为了准确评估固体推进剂的性能,研制了红外激光羽烟透过率测量系统.
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