contact n. 1.接触;联系;交涉。 2.〔美国〕(有势力的)熟人;门路。 3.【数学】相切;【电学】接触;触头;触点;【无线电】通讯;【军事】(飞机和地上部队的)联络。 4.曾与传染病接触者;【医学】传染病带菌嫌疑人。 a man of many contacts 交际广[门路多]的人。 an auxiliary contact联锁触头。 first contact【天文学】初亏。 fourth [last] contact【天文学】复圆。 a radar contact雷达搜获目标。 be in contact with 和…接触着,和(某人)接近。 break contact断开电路。 brought ... into contact with ... 使…和…接触。 come in (to) contact with 和…接触[冲突];碰见。 make contact 接通电路。 make useful contacts with ... 和…进行有用[利]的来往。 vt. 1.使接触。 2.【无线电】与…通讯;与…通话。 3.〔美口〕与…交际,接近(某人)。 contact a station in America 和美国一电台通话[接触]。 vi. 接触,联系。 ★ contact 作动词,多用于商业上或极亲密的朋友之间。 adj. 1.保持接触的,有关系的;由接触引起的。 2.【航空】可看见地面景物的。 adv. 【航空】以目力观察(飞行)。 int. 开动〔让飞机发动的信号〕。
Methods of test for commercial refrigerated cabinets - test for accidental mechanical contact 商业用冷藏柜试验方法.第8部分:意外机械接触试验
Commercial refrigerated cabinets - methods of test - part 8 : test for accidental mechanical contact 商用冷藏柜.试验方法.第8部分:机器偶发接触试验
Their major advantages over conventional bearings results from the fact that there is no mechanical contact between rotor and stator 与传统轴承相比,其主要优点源于定子和转子之间没有接触。
This article introduces one technique swayings mechanical contact whell based on hall componets to measure straight line long displacement 为此提出了一种以摆动式机械接触滚轮为基本原理,基于霍尔元件进行信号检测的直线大位移测量方法。
The magnetic bearing is a novel type , high performance bearing , which suspend the rotor by magnetic force without any mechanical contact between rotor and stator 磁悬浮轴承是一种利用磁场力将转子悬浮于空中,使转子与定子之间实现无机械接触的一种新型高性能轴承。
The switch is not only when switching over with production of electric arc , mechanical contact head easy to be damaged , but also it is slow to regulate , ca n ' t frequently operate , so limit the range of application of this kind of switch 这种开关不仅切换时伴有电弧的产生,机械触头容易损坏,而且调节速度慢,不能频繁操作,因此限制了这种开关的应用范围。
The magnetic bearing ( mb ) , widely used in high speed rotation field , has the advantage over conventional mechanical bearing in many aspects , such as no mechanical contact between the rotor and the bearing , no lubrication , no pollution , long - life span and so forth 由于磁轴承的转子和轴承之间没有机械接触,无须润滑,无油污染,使用寿命长,这些特点使它在高速旋转领域获得了广泛的应用。
This article briefly presented the principle of lower voltage power line carrier technology and spread spectrum technology , and discussed the advantage , the mode , the current state of spread spectrum technology applied to lower voltage power line carrier communication , and analyzed the channel transmission characters of lower voltage power line with mechanical contact 在本文中,简要阐述了低压电力线载波技术和扩频技术的原理,讨论了扩频技术在低压电力线载波通信中应用的优点、方式和现状,并通过大量实验,分析了带机械接触的低压电力线路的传输特性。