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- Common pressure-relief devices are a pressure-relief valve for primary protection and a rupture disc for secondary protection. 常用的减压装置是一个作为主要保护的减压阀和一个作为二级保护的破裂盘。
- If the fault is not cleared by the primary protection, backup relaying operates to clear the fault from the system. 如果故障不是被主保护清除的,后备继电器操作切除来自系统故障。
- The product is a renew protector of traditional JDB serial protector which has characteristics of intelligent protection function expect for retaining primary protection function. 该产品是传统JDB系列保护器的更新换代产品，它除保留原产品的基本保护功能外，还具有智能保护的功能。
- The product is a renew protector of traditional JDB serial protecotr which has characteristics of intelligent protection function expect for retaining primary protection function. 该产品是传统JDB系列保护器的更新换代产品,它除保留原产品的基本保护功能外,还具有智能保护的功能。
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Sure. We are friends since primary school. 当然，我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
- Love and hatred are primary emotions. 爱和恨是基本的情感。
- The Democratic primary was held this month. 民主党候选人初选於本月举行。
- Primary education comes under the umbrella of local government. 小学教育受地方政府的保护。
- He only accepted the primary education off and on in his childhood. 他小时候只断断续续地接受过初等教育。
- The primary reason for advertising is to sell more goods. 做广告的根本目的是要多出售货物。
- Collins was nosed out by his opponent in the primary. 柯林斯在初选中就被他的对手击败了。
- Not derived from something else; primary or basic. 基本的不是从它物派生的; 原本的或基本的
- We lost the New Hampshire primary. 我们在新罕布夏州的初选失利了。
- We regard husband and wife as the primary units of the family. 我们把夫妻视为家庭的基本成员。
- My father is a headmaster of a primary school. 我父亲是小学校长。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
