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The progress of recent research on the lignin biosynthesis is introduced in this paper.

本文介绍了木质素生物合成途径，重点综述了调控木质素合成的手段及限速酶研究方面的最新进展，并提出存在的问题及展望。

In recent years, studies on limonoids have focused on the chemical structures, biosynthesis and biological activities.

这类化合物具有明显抗癌和抗菌等生物活性，近年来的研究集中在其化学结构、生物合成和生物活性等方面。

The recent advances on molecular biology of starch biosynthesis in rice are reviewed in this paper.

本文综述了水稻淀粉合成的分子生物学研究的最新进展，主要内容是参与淀粉合成的酶鉴定及其基因表达调控，也介绍了对这些酶的遗传操作改良稻米淀粉品质等内容

At the recent annual meeting of American Association for the Advancement of Science in Washington D.C, the researchers showed the design of biped robots.

最近，在美国科技进步协会的华盛顿年会上，研究者们展示了"双足机器人"的设计方案。

The recent studies related bioremediation of soils contaminated by polychlorinated biphenyl are of increasing concern in environmental biological engineering area.

在环境生物工程近几年的研究中，多氯联苯污染土壤的生物修复一直是研究的热点和难点。

In recent years, the birth rate of Shanghai has decreased dramatically.

这两年，上海的出生率戏剧性的下降。

A bitingly funny and honest look at modern relationships, it is the story of the chance meetings, instant attractions and casual betrayals of four strangers: a successful photographer and recent divorcee, Anna, an aspiring novelist Dan, handsome dermatologist Larry and the enigmatic Alice.

可是，Dan又与摄影师Anna 发生了另一段感情，其后更利用Anna的身份於网上与医生Larry调情，巧合地造就了Larry 和Anna的情缘。

Based on historical data and recent survey data, this paper studied the geographical distributions and change tendencies of contents of chlorinated hydrocarbon s and total petroleum hydrocarbons in the bivalves collected along Guangdong coast.

根据历史调查资料和近年的观测数据，比较了广东沿海近江牡蛎Crassostrearivularis体中氯代烃和石油烃含量的地理分布与时间变化。

The author contrasts the facts and data collected by the author in the recent investigations in Lake Biwa, Japan and in Taihu Lake, China and then draws several conclusions:(1) Although Japan and China show different modernization paths, there are both close mutual actions between the human l...

得出的基本结论是：两国虽然现代化的时间和经历不同，但居民的生活行为和地域环境变化都有密切的相互影响。在人口稠密地区，只有充分重视生活经验—生活意识—生活行为—地域环境的演进和循环，从技术、经济、居民生活方式等多方面入手才能从根本上解决区域的环境问题

I will use this space to give biweekly updates on recent results and the work units planned for upcoming weeks.

以后我将每半个月对近期的结果和接下来的计划进行一次说明。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。