单选题
舵机安全阀调试过程中，每次开启的时间不宜（）。
发布日期：2021-03-22
超过30秒
超过60秒
少于30秒
少于60秒
试题解析
安全阀
安全阀是启闭件受外力作用下处于常闭状态，当设备或管道内的介质压力升高超过规定值时，通过向系统外排放介质来防止管道或设备内介质压力超过规定数值的特殊阀门。安全阀属于自动阀类，主要用于锅炉、压力容器和管道上，控制压力不超过规定值，对人身安全和设备运行起重要保护作用。注安全阀必须经过压力试验才能使用。
- 中文名
- 安全阀
- 应用
- 锅炉
- 类别
- 自动阀
- 作用
- 控制压力不超过规定值，
调试
调试是保证所提供的设备能够正常运行的必须程序，所有费用由设备提供商负担。
- 中文名
- 调试
- 词目
- 调试
- 外文名
- adjust
- 拼音
- tiáo shì
不宜
不宜，汉语词汇。拼音是bù yí，是最好不要的意思。
- 中文名
- 不宜
- 拼音
- bù yí
- 外文名
- not proper
- 解释
- 不适合,不适宜
题王网让考试变得更简单
扫码关注题王，更多免费功能准备上线！
此试题出现在
心脏复苏操作主要有心脏前区扣击和胸外按压术两种。
张忠培先生将（）与（）喻为近代考古学这部车子的两个轮子。
Questions 1 to 5 are based on the following passage. A call home can cost ￡1.37 a min BRITISH tourists are still ripped off by mobile phone firms charging over the odds for “roaming” services, the European Commission has found. Calls made or received on mobiles while abroad cost up to ￡1.37 a minute—or 19 times as much as domestic calls, a study revealed. Users have to pay roaming charges when using a foreign network, under an agreement with their own operator. Mobiles automatically switch to a local network when outside the UK. Companies such as Vodafone and T-Mobile are accused of abusing their dominant position by charging high fees and passing them on to customers. British operator Vodafone and T-Mobile’s parent company Deutsche Telekom are guilty of anti-competitive practices in Germany, the EC claims. If found guilty, both could be fined millions of pounds for abusing their monopoly. Vodafone is appealing against earlier EC allegations that its British roaming rates are “unfair and excessive”. Jonathan Morris, of What Mobile? magazine, said: “If people use their phone when away, they can rack up hundreds of pounds quickly. Making quick calls won’t help as calls are charged by the minute, not the second.” Questions: 1．Mobile phone firms cheat British tourists by making them pay too much money for ______________. 2．Which mobile phone company is cheapest to call UK from Australia? 3．If found guilty, which two mobile phone firms could be fined millions of pounds for abusing their monopoly? 4．What are the European Commission’s allegations about Vodafone? 5．How will people be charged if they use their phone when away?
不属于公共卫生执法法律关系客体的是（ ）。
（）列检作业场对无调中转作业动态检查须执行“TFDS动态检查”的检查范围和预报质量标准。
《广东省法律援助条例》的立法目的是（）
关于OT试验下列哪项正确？（ ）
力的平行四边形法则中，两个分力和它们的合力的作用范围（）。
应用冠字号码识别技术可实现对钞票流向进行追踪，较好解决了涉假纠纷举证问题。
S700K型电动转辙机的动作电流为不大于（）
暂无相关推荐~