自生

Through inquisition it is discovered that there are four major types of microorganism:germ,fungi,actinomyces,azotobacter,which mainly concentrate in 0-20 cm of surface layer soil.

经调查发现土壤中的微生物类群主要有四大类：好气性细菌、真菌、放线菌和自生固氮菌。

The Cyanobacteria and soil bacteria such as Azotobacter, which carry out BNF without plant involvement, are examples of free-living nitrogen fixing organisms.

兰细菌和土壤细菌如固氮菌都是自生固氮微生物的代表，它们可以在没有植物介入下进行生物固氮。

In order to select high nitrogen-fixing azotobacter strains, nitrogenase activity of 13 strains separated in the rhizosphere in Gansu non-leguminous crop fields were measured by acetylene reduction method. Also the fertilization effect of the strains on spring wheat was investigated via pot experiment.

为挑选具有高固氮能力的自生固氮菌菌株，用乙炔还原法对甘肃省春小麦和玉米等非豆科作物根际土壤中分离所得的13株菌进行固氮酶活性测定，并通过盆栽试验对其进行春小麦肥效试验。

At the moment, a number of relevant genes in the bacteroid related to the symbiosis were activated, and the expressed quantity of protein remarkably increased.

为了探明这种改变是否与合成蛋白质的细胞器一核糖体有关，比较分析了苜蓿根瘤菌在自生和共生状态下核糖体蛋白的表达谱。

During the establishment process of symbiotic relation of alfalfa rhizobium with host plant, alfalfa rhizobium entered into host plant cell as self-growing state, and then transferred into bacteroid of symbiotic state through its differentiation development.

苜蓿根瘤菌在与宿主植物建立共生关系的过程中，以自生状态进入宿主植物细胞，经过分化发育转变为共生状态的类菌体。

A Fe-3C-30Cr eutectic in-situ structure composite was experimentaly prepared by using Bridgeman unidirectional solidification technique.

试验用Bridgeman走向凝固技术制取了Fe－3C－30Cr共晶自生结构复合材料。

Based on the analysis of the mutual action between CO2 fluids and sandstone, it is found that the higher content of dawsonite is the main cause for poorer reservoir properties, and the dawsonite is formed later than other authigenic minerals and no erosion occurres after the pores filling, which are the basic factors resulting in poor reservoir properties.

分析CO2流体与砂岩的相互作用发现，片钠铝石含量较高是储层物性变差的直接原因，而片钠铝石生长时间晚于其它自生矿物且在充填孔隙后没有发生溶蚀是储层物性变差的根本原因。

At the same time, the SEM study shows that gibbsite occurs on the sample surface. At 200 ℃, as dawsonite sandstone is being dissolved authigenic siderite forms. At 300℃, chlorite deposit on parts of the sample surface. The weak solution of dawsonite sandstone at 100℃ and the formation of siderite at 200℃ illuminate that CO2 being in carbonates in the strata can not be released when CO2 phase is adding to the system.

同时，各温度下样品表面均有一水软铝石放射状集合体沉淀。200℃时，随着片钠铝石的溶解有自生菱铁矿生成，300℃时样品局部有绿泥石沉淀。100℃下片钠铝石的微弱溶解及200℃下菱铁矿的形成表明，在地层条件下以碳酸盐矿物形式捕获的CO2，不会由于CO2的二次注入而重新释放。

As cement, authigenic mineral or vein, dawsonite is found not only in marine dolomite and oil shale, but also in terrigenous fragmentary rock and coal measures.

片钠铝石作为胶结物、自生矿物或脉体，不仅分布在海相白云岩、油页岩中，而且还广泛分布在陆源碎屑岩及煤系地层中。

The sandstone with abundant dawsonite can be used to study the genetic relationship between the authigenic minerals caused by injected CO2 gas and original CO2 in Gudian carbonate dioxide gas field of Songliao Basin.

松辽盆地孤店二氧化碳气田储集砂岩中含有大量片钠铝石，根据其特征可以查明注入CO2气形成的自生矿物与CO2成因之间的联系。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失