近年来

In recent years, a defense mechanism has been discovered, which turns out to be conserved among eukaryotes.

近年来发现的RNA沉默是普遍存在于真核生物的一种防御机制。

Medical technology has advanced considerably in recent years.

近年来医疗技术有了很大的发展。

According to the current development of our economy, imposing the Society Security Tax in time can provide abundant fund for a consolidated, regulated and perfect society security system.

近年来，随着我国经济的发展，一个符合社会主义市场经济要求的社会保障制度框架已经初步建立起来。然而，要建立一个统一、规范和完善的社会保障体系，关键在于要形成一种稳定、可靠的社会保障资金筹措机制。

High strength and water stability earth consolidator, HEC for short, is a new type of earth consolidator developed in recent years, and it has been widely used in projects.

摘要］ HEC土体固结剂是近年来出现的新型高强高耐水固结剂，在工程中得到了广泛应用。

Lake Constance used to be polluted but it had been cleaned up in recent years.

康湖过去是受过污染的，但近年来变清了。

In recent years, with the constant development of surveying and mapping industry, Shaanxi Bureau of Surveying and Mapping in cultural construction has been further strengthened, built up area of 7060 square meters of workers and cultural center, the center of 14.5 thousand square meters garden and more than 700 square meters of sports hall.

近年来，随着测绘事业的不断发展，陕西测绘局的职工文化建设得到进一步加强，建成了面积为7060平方米的职工文化中心、1.45万平方米的中心花园和700多平方米的运动馆。

Many Beam-Arch Combination System Bridges, as their good mechanical behavior, low cost, constructibility and beautiful appearance, have been built all over China in these years.

梁拱组合体系桥梁近年来在我国发展迅速，由于其受力合理、造价低廉、施工简便、造型美观等特点，在公路建设中得到广泛应用。

Recent investigations on quantum interference effects were introduced, including line-shape variation, spontaneous emission enhancement or cancellation, constructive interference and electromagnetically induced transparency in molecular and atomic-molecular mixed systems in our laboratory.

概述了近年来我们实验室将原子中量子干涉推向分子及分子-原子混合体系中量子干涉效应的研究，内中涉及基于量子干涉的分子跃迁线型畸变、发辐射的相消和相长、子干涉的影响因素、子一原子混合系统中的量子干涉相消和相长、磁自感应透明等。

In recent years, constructivism has received considerable attention in education scholarship.

近年来，建构主义在教育教学界引起了高度的重视。

The constructivist theory of learning has emerged recently.

建构主义学习理论是近年来出现的学习理论。

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。