查询词典 isotopes

Applications of isotopes and radiation inconservation of the environment.

同位素和辐射技术在环境保护中的应用。

The finite difference method is used to calculate the multi dimensional diffusion of hydrogen isotopes in materials.

研究了氢同位素在材料中多维扩散行为的有限差分计算方法。

Unfortunately, the grains examined do not carry the sort of isotopes that would allow them to be dated.

不幸的是，所研究的颗粒未能带有那种可能确定这些星星的年龄的同位素。

It is rare in nature because all its isotopes are short-lived and because radium, its source, is scarce.

在自然界很稀少，因为它所有的同位素都是短寿命的，还因为它的来源是稀有的。

The results showed that stable isotopes of precipitation in this area had obvious seasonal effect and rainfall effect.

结果表明，该区大气降水稳定性同位素存在明显的降水量效应和季节效应。

Lead has four stable isotopes: Lead 204, 206, 207, 208, but there are more than 20 kinds of radioisotopes.

铅在自然界中有4种稳定同位素：铅204、206、207、208，还有20多种放射性同位素。

Different forms of a single element are called isotopes.

一个单 分子的不同变化形式就叫做同位素。

The most dramatic effect would have been on the formation of lithium, an element that has two isotopes.

效果最为强烈的便是锂元素的形成，这种元素有两种同位素。

Different forms of a single element are called isotopes.

单个元素的不同形式称为同位素。

A total of 33 masers were detected, 16 of which were new. Observational studies with CO and its isotopes for a set of samples selected from MSX and IRAS sources were carried out.

已对190个尘埃核作了水脉泽搜寻，是迄今规模最大的水脉泽搜寻，共测到33个脉泽，其中16个为新水脉泽。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。