nitrogen造句

Non - basic nitrogen - containing series include pyrroles, indoles, carbazoles and benzcarbazoles.
不含堿性氮的化合物包括吡咯 、 吲哚 、 咔唑和苯咔唑.

Nitrogen trifluoride ( NF 3 ) is a toxic, colorless, odorless, nonflammable, oxidizing compressed gas.
三氟化氮 ( NF3 ) 是有毒 、 無(wú)色 、 無(wú)嗅 、 不可燃的氧化性壓縮氣體.

The nitrogen source's effects on the purification performance of air phase trickling biofilter are significant.
氮源對(duì)于氣相生物滴濾床的凈化效果有顯著的影響.

The faeces contain nitrogen and it is that which fertilises the desert soil.
糞便含氮，而正是氮可以肥化荒蕪的土地。

The nitrogen utilization efficiency were downtrend with the amount of topdressing increased.
隨著施氮量增加,追施氮肥的利用率明顯下降.

Will you sunder nitrogen from air?
你能從空氣中把氮?dú)夥蛛x出來(lái) 嗎 ?

Method: 30 cases of keloid were treated with MEBO Scar Lotion after liquid nitrogen refrigeration.
方法: 對(duì)30例瘢痕疙瘩患者液氮冷凍后外涂美比歐疤痕平.

The calculated results showed that ZMS adsorbent adsorbs preferably oxygen to nitrogen.
實(shí)驗(yàn)結(jié)果表明,沸石分子篩吸附劑優(yōu)先吸附氮.

The atmosphere consist of more than 70 % of nitrogen.
大氣中含有70%以上的氮?dú)?

What is the percentage of nitrogen in air?
空氣中所含的氮的比例是多少?

In this paper , two unsaturated alicyclic nitrogen heterocyclic crownethers were synthesized by phase transfer reaction.
采用相轉(zhuǎn)移催化反應(yīng)合成了兩個(gè)不飽和脂環(huán)氮雜冠醚.

The Atractylone in sample solution was kept stable in nitrogen.
樣品溶液中的蒼術(shù)酮經(jīng)充氮?dú)夂蟊３址€(wěn)定.

These bacteria break down nitrogen from the air into a form that legumes can use.
這些細(xì)菌能把空氣中的氮?dú)夥纸獬啥箍浦参锟衫玫男问?

Natural gas liquification involves both mixed - refrigerant cycle and nitrogen expander cycle.
近幾年國(guó)內(nèi)天然氣液化技術(shù)主要采用混合工質(zhì)液化循環(huán)和氮膨脹液化循環(huán).

Every tonne of coal contains,on average,30 kilograms of nitrogen.
每噸煤平均含30公斤氮。

Purpose : To observe the therapeutic effect of squamous blepharitis treated with liquefacient nitrogen cryotherapy.
目的: 觀察液氮冷凍治療鱗屑性瞼緣炎的臨床療效.

Many surgical complications and disease processes inhibit normal nitrogen anabolism.
許多外科并發(fā)癥和疾病抑制正常的氮合成代謝.

The effect of nitrogen can be overcome by sheathing the flame in argon.
氮的影響則可以通過(guò)用氬氣包覆火焰而予以克服.

The plant requires nitrogen in order to make proteins.
植物需要氮以便制造蛋白質(zhì).

The amide nitrogen of glutamine or asparagine functions more effectively than ammonia.
谷酰胺或天門(mén)冬酰胺的酰胺氮作用較氨更有效.

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