例句與造句

1. General specification of explosion - proof electromagnet valves in coal mine
   礦用防爆電磁閥通用技術(shù)條件
2. Yet , most existing high speed on / off valves use electromagnet as their electicity - mechanism conversion element , and good performant electromagnets have to be imported from other countries , in such situation , it is difficity to make excelent high speed electromagnet valve made in our country , even if we can make good performant high speed electromagnet valve in our country , it still has the shortcoming of not high enough respond speed , too small placket and big volumeo in this thesis , a new high speed on / off valve is developed based on two types of existing valves , this new valve has higher respond speed , a little big placket and little volume o for the new valve , several main task was made out as below : a ) several types of high speed on / off were first analyzed , then the basic performance of the actuator of the new valve was analyzed
   高速開關(guān)閥是20世紀(jì)80年代發(fā)展起來的一種具有響應(yīng)速度快、抗污染能力強(qiáng)、與電子電路配合好等特點(diǎn)的一個(gè)良好的動(dòng)力放大元件。但是現(xiàn)有的高速開關(guān)閥基本上采用電磁鐵為電?機(jī)轉(zhuǎn)換元件，高性能的電磁鐵又基本為進(jìn)口，難以滿足高性能高速開關(guān)閥國(guó)產(chǎn)化的要求，即使是高性能的電磁鐵式高速開關(guān)閥，仍存在著響應(yīng)速度不夠大、開口過小、體積較大的缺點(diǎn)。本文在現(xiàn)有兩種高速開關(guān)閥的基礎(chǔ)上，設(shè)計(jì)了一種新穎的高速開關(guān)閥，在提高其動(dòng)態(tài)性能的同時(shí)，增大了閥的開口，減小了閥的體積。
3. It's difficult to find electromagnet valve in a sentence. 用electromagnet valve造句挺難的