单种的

DNaseⅠ,preferentially attacking double-stranded DNA to produce oligonucleotides with 5'-phosphoryl and 3'-hydroxy termini, is considered to play a major role in digestion of dietary DNA.

目前已发现DNA酶Ⅰ存在6种编码蛋白的基因多态性、单核苷酸多态性和内含子4的可变串联重复序列。

It was also found that combined addition of α-pinene, pine oil alcohol and camphor, the inhibitors of monoterpenoid pathway, obviously improved taxol production.

同时发现单萜途径的抑制剂α-蒎烯与松油醇及樟脑三种物质一起添加对紫杉醇合成的促进作用显著。

Any hardy bog orchid of the genus Pogonia: terrestrial orchids having slender rootstocks and erect stems bearing one or a few leaves and a solitary terminal flower .

朱兰属的任何一种坚实的沼泽兰；陆生，根茎纤细，叶一片或少数几片，花单朵顶生。

It seems to be a germ called pseudomonas.

应该是感染一种叫假单胞菌的细菌引起的

A sandwich LAB-ELISA wa s developed to detect Pseudorabies virus on the basis of species-specific monoclonal antibodies in this study.

在伪狂犬病病毒种特异性单克隆抗体的基础上建立了检测该病毒抗原的单抗夹心LAB-ELISA方法。

A kind of extremely Al-rich pyroxene in inclusions PM010 and S4-8 was found. We think that there likely is a new variety of clinopyroxene.

在包体PM010和S4-8中，发现了一种极富Al的辉石，我们认为这很可能是单斜辉石的新变种。

Based on BP neural network PID control, including the single neuron control, such as quadratic optimization several methods of comparison!

详细说明：基于BP神经网络的PID控制，包括单神经元控制，二次型最优化等几种方法的比较！

The company introduces internationally advanced ultrasonic technology and production technology, produce more than ten series, over one hundred kinds of single rabbet, multi-rabbet, gaseous phase, full-automatic ultrasonic wave washing machine with environmental protection and the washing equipment of non-standard type; and more than 10 kinds of standard, non-standard ultrasonic plastic welding machine, metal welding machine, ultrasonic average instrument, ultrasonic extracting instrument,etc.

公司引进国际先进的超声波技术和生产工艺，生产十多个系列、百余种规格单槽、多槽、气相及环保全自动超声波清洗机和非标清洗设备；以及十多个规格的标准、非标型超声波塑料焊接机、金属焊接机、超声波均化仪、超声波萃取仪等。

Dendrimers,which have hyperbranched, well defined and monodisperse structures, can be formed by reiterative reaction sequences starting from smaller molecules named " initiator core ".

树枝状大分子是一种特殊结构的新型高分子，具有高度支化、结构规整、单分散等独特的结构。

A novel single-stage power factor correction circuit based on flyback converter is presented in this paper,.A single active switch is used to achieve a fast-regulated-output voltage, the reservoir capacitor voltage is clamped and efficiency is high.

本文提出了一种基于反激变换器的新型单相功率因数校正电路，电路只用一个有源开关就可以获得输出电压的快速调节，储能电容电压被箝位、效率高。

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。