查询词典 a chemical element

White phosphorus is a common allotrope of the chemical element phosphorus which has found extensive military application as an incendiary agent, smoke-screening agent, and as an antipersonnel flame compound capable of causing serious burns.

白磷属于磷元素的一种同素异形体，这种化学物质被广泛应用于军事燃烧弹，烟幕弹的制作中，其杀伤性燃烧混合物可以造成严重的烧伤。

It is the discovery of a new chemical element.

它是一种新化学元素的发现。

The chemical element of race is a lot of with the lines to the performance.

民族的元素很多是以线条来表现的。

The mixture of the two kinds of chemical elements creates a new element.

这两种化学元素混合在一起会产生一种新的元素。

Mercury is a kind of chemical element.

水银是一种化学元素。

Each chemical element has been given a name and a distinctive symbol.

每个元素被给予一个名字和独特的符号。

This is quite true as the chemical element helium as first found when the sun was observed by a scientist .

这是十分真实的，正如化学元素氦就是科学家观察太阳时发现的。

The color design of the nature indoor environment become a the very important is inside space design of the chemical element of essential to have.

自然室内的环境色彩设计成为很重要的一个空间内设计的必不可少的元素。

The atom is the smallest particle of an element that can have a separate existence of take part in a chemical reaction.

原子是元素的最小粒子，它能单独存在或参与化学反应。

Top research on how self-explanation plays a role in the teaching of chemistry concept; whether self-explanation also contributes to acquiring other kinds of knowledge (knowledge on chemical element, reaction principle); whether it also has a function In other principles etc.

在本研究中由于各方面的原因，本研究还有一些问题需要在后续的研究中完成；从深层次上研究自我解释如何对化学概念的教学起作用；自我解释是否在其他知识(元素化学物知识、反应原理)中也有作用；在其他学科中是否也有作用等等。

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。