谁能帮我翻译一下，注意专业词汇。

在自然界中，细菌需要靠趋化运动来趋利避害以获得有利的生存环境。鞭毛作为细菌的运动器官，搏枝是趋化的前提与基础。鞭毛的合成组装是高度有序且耗能的等级调控过程，每一等级基因的表达都需要多个调控因子的参与。其中，RpoN对鞭毛合成基因的表达为正调控。鞭毛调节子FleQ作为RpoN的激活增强子，与RpoN协同调控了鞭毛基因的转录与表达。相反，RpoS负调控了包括鞭毛调控σ因子FliA在内的鞭毛合成基因的转录与表达，且rpoS基因的缺失导致鞭毛合成相关基嫌前因的转录水平显著上调。RpoS能够负调控诸多鞭毛基因的表达可能是通过调控鞭毛主调节子FleQ或鞭毛调控σ因子FliA来实现的；亦可能是由于RpoS和其他的σ因子竞争有限的核心聚合酶造成的。其揭示了在细菌的鞭基者敏毛合成与趋化中不同σ因子之间存在复杂的交叉调控。
In nature, bacteria need to draw on the advantages and avoid disadvantages by chemotactic movement in order to obtain a favorable living environment. Flagellar motion as organs of bacteria, is premise and basis of chemotaxis. The synthesis and assembly of flagella is level control process is highly ordered and energy-consuming, expression of each grade gene requires several regulatory factors involved in. Among them, the expression of RpoN on the flagellar biosynthesis gene for positive regulation. Flagellar regulon FleQ as the activating enhancer RpoN, together with RpoN regulate transcription and expression of flagellin gene. In contrast, RpoS negatively regulates the transcription of flagellar biosynthesis genes including flagellar regulator sigma factor FliA, and the expression of rpoS gene, deletion and led to a significant up-regulation of transcription of flagellar genes. RpoS can express the negative regulation of many flagellar gene might be achieved through the regulation of flagellar master node FleQ or flagellar regulator sigma factor FliA; also may be due to the core polymerase RpoS and other sigma factors caused by competition co.. It is revealed in the flagellar synthesis of bacteria and more complex cross regulation between different sigma factors of.

　　在自然界中，细菌需要靠趋化运动来趋利避害以获得有利的生存环境。

　　It is essential for a bacterium to rely on chemotaxis motion in nature so as to obtain a favourable living environment.

　　鞭毛作为细菌的运动器官，是趋化的前提与基础。

　　As a bacterium’s locomotive organs, the flagella are the prerequisite and foundation of its chemotaxis.

　　鞭毛的合成组装是高度散侍有序且耗能的等级调控过程，每一等级基因的表达都需要多个调控因子的参与。其中，RpoN对鞭毛合成基因的表达为正调控。

　　The synthesis and assembly of its flagella are a regulating and controlling process for the ranking which is high ordered and power wasting as well, and the expression of each ranking gene requires multiple regulating and controlling factors, in which RpoN is the positive regulating and controlling to the expression of compositive genes.

　　鞭毛调节子FleQ作为RpoN的激活增强子，与RpoN协同调控了鞭毛基因的转录与表达。

　　Regulon FleQ of a flagellum acts as an activation enhancer and cooperates with RpoN to regulate and control the transcription and expression of the flagellum gene.

　　相反，RpoS负调控了包括鞭毛调控σ因子FliA在内的鞭毛合成基因的转录与表达，且RpoS基因的缺失导致鞭毛合成相关基因的转录水平显著上调。

　　On the contrary, RpoS negatively regulates and controls the transcription and expression of the compositive genes of the flagellum, including σ factor FliA, and that the deletion of the RpoS genes results in a remarkable upward regulation of the transcription level for the flagella to compose correlative genes.

　　RpoS能够负调控诸多鞭毛基因的表达可能是通过调控鞭毛主调节子FleQ或鞭毛调配掘岁控σ因子FliA来实现的；亦培睁可能是由于RpoS和其他的σ因子竞争有限的核心聚合酶造成的。其揭示了在细菌的鞭毛合成与趋化中不同σ因子之间存在复杂的交叉调控。

It is possible that expression, namely RpoS can negatively regulates and controls a good many flagella genes, is to be completed by major Regulon FleQ or σ factor FliA in flagella’s regulating and controlling, or resulted in this consequence that RpoS contends with other σ factors for a limited nuclear polymerase, which reveals that there is not any complicated intersecting regulation and control with σ factors in the process of the compound and chemotaxis of a bacterium’s flagella.

In nature, bacteria need to rely on the chemotactic movement while avoiding disadvantages to obtain a favorable living environment. Flagellar as bacterial movement organs, is the premise and basis of the chemotactic. Flagella synthesis assembly is highly ordered and energy level regulation processes of gene expression of each class, which requires the participation of a plurality of regulation factors. , RpoN positively regulate expression on the of flagellum synthesis of genes. The flagellar regulon FleQ sub-as RpoN activation enhanced, with RpoN flagellar gene transcription and expression is coordinately regulated. Instead, RpoS negative regulation of a the flagella biosynthetic genes, including the flagellar regulation σ factor FliA including transcription and expression, and the rpoS gene deletion lead flagellar biosynthesis gene transcription level was significantly upregulated. RpoS to negative regulation of the the many flagellar gene expression may be through the regulation of flagellar master regulator sub-FleQ or flagella regulation sigma factor FliA to achieve; may be caused due to the limited core polymerase RpoS and other sigma factor competition. Reveals different σ factor complex cross between regulation of flagellum synthesis and chemotaxis of bacteria. I have a better answer

In nature, bacteria need to draw on the advantages and avoid disadvantages by chemotactic movement in order to obtain a favorable living environment. Flagellar motion as organs of bacteria, is premise and basis of chemotaxis. The synthesis and assembly of flagella is level control process is highly ordered and energy-consuming, expression of each grade gene requires several regulatory factors involved in. Among them, the expression of RpoN on the flagellar biosynthesis gene for positive regulation. Flagellar regulon FleQ as the activating enhancer RpoN, together with RpoN regulate transcription and expression of flagellin gene. In contrast, RpoS negatively regulates the transcription of flagellar biosynthesis genes including flagellar regulator sigma factor FliA, and the expression of rpoS gene, deletion and led to a significant up-regulation of transcription of flagellar genes. RpoS can express the negative regulation of many flagellar gene might be achieved through the regulation of flagellar master node FleQ or flagellar regulator sigma factor FliA; also may be due to the core polymerase RpoS and other sigma factors caused by competition co.. It is revealed in the flagellar synthesis of bacteria and more complex cross regulation between different sigma factors of.

Bacteria survive the natural world on the beneficial environment brought by chemotactic movement. Flagellum, the movement organ of bacteria, is the premise and foundation of chemotactic movement.The synthesis and assembling of flagellum is a highly regulated and energy-consumed level control process.Gene at different level needs several regulatory factors to participate its expression. Among them the RpoN represents positive regulation to the expression of flagella synthesis gene. The flagella regulon FleQ, which acts as motivative enhancer, coordinates the transcription and expression of flagella gene with RpoN. On the contrary, on the transcription and expression of flagella synthesis gene(including flagella regulon,σ factor FliA),RpoS has a negative influence. The lack of RpoS gene will lead to obvious increase of the transcription of gene related to flagella synthesis.The reason why RpoS can negatively regulate the expression of various flagella gene is probably that it realize the process through the control of FleQ or FliA; it may also possible that the negative regulation is caused by the competition between RpoS and other σ factors for limited core polymerase. All these have indicated the complicated cross regulation of different σ factors during the synthesis and chemotaxis of bacteria flagellum.