91亚洲精品福利在线播放,欧美日韩国产在线人成app,天天躁日日躁疯人影院,sao虎视频最新网站入口,精品久久久久久中文字幕女

nitrogen基本解釋

名詞[化]氮，氮氣

nitrogen的翻譯

nitrogen相關(guān)例句

名詞

1. Nitrogen forms about 78% of the earth's atmosphere.
氮約占地球大氣的百分之七十八。

nitrogen網(wǎng)絡(luò )解釋

1. nitrogen是什么意思

1. 氮氣：我司生產(chǎn)銷(xiāo)售變壓吸附(PSA)制氮機.制氮機配有空氣緩沖罐,氮氣緩沖罐.還配有兩個(gè)吸附塔,雙吸附塔并聯(lián)交替進(jìn)行吸附,一塔工作一塔再生,連續產(chǎn)氮. 壓縮空氣(AIR) 氧氣(OXYGEN)放空 氮氣(NITROGEN)收集 .規格多種多樣,歡迎來(lái)電咨詢(xún).

2. 氮元素：H-1含碳量極低,以氮元素(Nitrogen)代替大部分的碳,因此生銹的主因就是鋼鐵中的碳遇水成為氧化物. 使用氮元素同時(shí)可保有絕佳硬度與韌渡. Spyderco水中救援刀,長(cháng)久以來(lái)就深受航海員、急救人員的喜愛(ài),現在更加強了其防銹能力,

3. 總氮：Nitrite 亞硝酸鹽 | Nitrogen 總氮 | Oxygen 溶解氧

nitrogen詞典解釋

1. 氮;氮氣
Nitrogen is a colourless element that has no smell and is usually found as a gas. It forms about 78% of the earth's atmosphere, and is found in all living things.

nitrogen英英釋義

noun

1. a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas
constitutes 78 percent of the atmosphere by volume
a constituent of all living tissues

Synonym: Natomic number 7