查询词典 molecules

The rate of sedimentation depends on the molecular weight of the molecule and thus the ultracentrifuge and be used to separate a mixture of large molecules, such as large colloidal proteins, and estimate particle sizes.

物质沉淀率取决于分子本身的重量，所以可用超速离心机分离大分子混合物，如：大胶体蛋白，或用于检测物质颗粒大小。

Ultracentrifuge A high-speed centrifuge, operating at up to a million revolutions per second that is used to sediment protein and nucleic acid molecules.

超速离心机：一种高速离心设备，运转时转速可达每秒百万转，常用于沉淀分离蛋白质与核酸分子。

This ultramicroscopic machine assembles three-dimensional protein molecules that are essential for us to live.

这个超显微的机器可以装配我们生命所必须的具有三维结构的蛋白质分子。

Following Randall and Failey, some assumptions about the activity coefficients of the ions of o-nitrobenzoic acid in salt solutions were made and thereby it was possible to calculate the activity coefficients of its undissociated molecules in these solutions.

关于邻硝基苯甲酸根离子在这些盐溶液中的平均活度系数，作者仿照前人作某些假設，从而計算出該酸的未离解分子在盐溶液中的活度系数f_u。

The results show that proper control of additive, flocculating agent, temperature, stir speed, quantity of each agent and other process parameters could effectively remove the impurities in the coagulation bath such as the solid, big molecules in the forms of undissolved colloid and semi-colloid. The sizes of flocculates are big and loose, ready to precipitate, therefore the impurity removing effect is very ideal, greatly improving the exchange ability of the ion exchange resin in the subsequent process.

研究结果表明在选用合适的添加剂与絮凝剂，适当控制絮凝的温度、搅拌速度、各试剂的添加量和添加顺序等相关工艺参数的条件下，凝固浴中的絮状固体杂质、以未溶解的胶态和半胶态形式存在的大分子性杂质等都被去除，絮凝物块大而疏松，沉降迅速，除杂纯化效果非常理想，大大提高了后续处理工艺中阴阳离子交换树脂的处理能力。

The Clean Energy project uses computational chemistry and the willingness of the people to look for the best molecules to fulfill these roles: organic photovoltaics for producing unexpensive solar cells, polymers for membranes to be used in fuel cells, how to assemble them?

清洁能源项目，借助于计算化学和志愿者，来寻找最佳的分子以实现这些：用有机光电池来生产价格低廉的太阳能电池，用聚合物薄膜制造燃料电池……但是该如何装配他们呢？

The number of molecules in any object we can see is unimaginably large.

我们能看到的任何物体中，分子的数量大得无法想象。

Unit of mass for expressing masses of atoms or molecules.

用于表达原子或分子质量的单位。

Thus the molecules which labeled by QDs still have the same function with the unlabeled.

这表明经与量子点偶连后的生物分子仍保持着生物活性。

These highly reactive molecules with unpaired electrons can break down cells, leaving them vulnerable to invading viruses and bacteria.

这些带未配对电子的高活性分子能损伤细胞，使之更易受病毒细菌的侵袭。

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。