面临

Utilizing biological technique on modification of them was emphasized and the choices of reaction. activity and biocatalyst by biological method were introduced.

重点介绍了生物技术方法对其改性的优越性及在生物改性过程中反应介质、水活度、生物催化剂选择上所面临的挑战。

This paper reviews the international codes and declarations of bioethics and examines their effect, application and facing problems.

论文摘要本文通过考察有关生命伦理学的国际准则和宣言，探讨了生命伦理学普遍性原则的应用及其面临的问题。

According to the new vision of the committee, NEON should be focused on the six critical environmental challenges that the nation faces, including biodiversity, species composition and ecosystem functioning; ecological aspects of biogeochemical cycle, ecological implcations of climate change, ecology and evolution of infectious diseases, invasive species and land use and habitat alteration.

新的方案建议NEON应重点关注生物多样性、物种组成与生态系统功能、生物地球化学循环的生态学影响、气候变化的生态学内涵、传染病的生态学和演化、入侵种以及土地利用和栖息地的丧失这6个美国国家层次当前所面临的最严峻的环境挑战。

The study is published in the Journal of Biogeography. From 2071 to 2100, nine out of 17 species examined are projected to face longer migrations, particularly birds that cross the Sahara desert, the study found.

这项在《生物地理学杂志》上发表的研究结果显示，在2071至2100年间，所研究的17种鸟类中有9种将面临更长的迁徙行程，尤其是需要飞越撒哈拉沙漠的鸟类。

Biological diversity and ecosystem function in human society is facing has become a major scientific question.

与生态系统功能的关系已成为当前人类社会面临的一个重大科学问题。

This paper provides the state of arts, the existing challenges, and the future 3D biometrics.

本文综述了该领域当前的国内外研究现状，并探讨了面临的主要困难以及未来的发展方向。

Being the only biometry certification techniques for remote surveillance,gait recognition,on one hand,is regarded as being of important potential value,hence a lot of algorithms have been proposed,on the other hand,it has encountered a lot of challenges.

作为唯一远程生物认证技术，步态识别一方面越来越受到人们的重视，提出了很多相应的算法，另一方面，它又面临着很多挑战，其难点之一是如何从多帧步态中有效地提取步态特征。

The pattern and level of study on bioscience is undertaking profound changes and it is bringing us unprecedented influence.

生命科学研究的模式和层次正经历一场深刻的变革，同时它带给我们的影响也是史无前例的，我们面临严峻的挑战。

As we know, it is very difficult to make an exact correlation between the marine and terrestrial biota.

我们面临的一个很大困难在于如何才能保证海相与陆相生物群之间的精确对比。

It tries to establish a community model with the aim at building a harmonious biotope that suits the elderly's life and also probes into the serious test of the aging society to which China is turning.

帖主对此回复很满意，所以奖励 30 积分给真实谎言尝试建立适合老年人居住的和谐生活小区为目的的社区模型，并对我国进入老年化社会面临严峻考验进行了探讨。

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。