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- It can fix nitrogen from air, N-fixing activity reaches 0. 43 nmol C2H4/vial. 同时培养料疏松;富有弹性。2.;能固定空气中氮素;达到瓶小时0
- Rhizobia could intrude into legumes and form nodules in their roots and stems, and could fix nitrogen in the atmosphere and supply nutrition to the host plants. 摘要根瘤菌可以入侵豆科植物形成根瘤或茎瘤，并可固定空气中的氮为其宿主植物提供必需的氨素营养。
- Biological nitrogen fixation (BNF), which provides all the plants on the globe with 75% of fixed nitrogen, is one of the important projects in life science. 生物固氮为全球的植物提供75%25的氮素,是生命科学中的重大课题。
- But investigators in the Rocky Mountains have unsetting(颠覆) evidence that an excess of fixed nitrogen coming in from the atmosphere may be upsetting all that. 但是调查人员在落基山脉有一个颠覆性的发现：那里的大气层里一直有过量的氮。
- The activity of microbes associated with roots of acacias (and other legumes such as Lucerne) fixes nitrogen to soil particles and so improves fertility. 金合欢（和苜蓿等其他豆科植物）根部附生的细菌能将氮固定到土壤中，以此来提升肥力。
- The tables are firmly fixed to the floor. 桌子都牢牢地固定在地板上。
- The man jacked up his car to fix a flat tire. 那人用千斤顶把他的汽车顶起以修理漏气的轮胎。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- I bought a run-down farm house and plan to fix it up. 我买了一间破败的农舍，打算整修整修。
- We needed someone to fix the tape recorder. 我们需要有人来修理录音机。
- I can fix up you with a used car. 我可以为你提拱一辆旧车。
- I tried to fix the date in my mind. 我试着把那个日期牢记在心。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- He promised to fix me up with a nice girl. 他答应为我介绍一位妙龄女郎。
- Bacteria fixing nitrogen of Ammonia-resistant 耐氨固氨菌
- The neighbourhood pusher got Joe a fix. 邻里的不法商贩给乔打了一针毒品。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- It's because I do not like to fix work hour. 这是因为我不喜欢固定的工作时间。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- The fence posts were fixed firmly in the ground. 栅栏的立柱牢牢地固定在地上。
