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冰棒产品英语长句子精华版

作者:高考题库网
来源:https://www.bjmy2z.cn/gaokao
2021-01-14 07:33
tags:理学, 高等教育

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2021年1月14日发(作者:窦弘果)
重点长句子
1、Beginning in the late seventeenth century with the work of Robert Boyle, who
proposed the presently accepted concept of an element, numerous investigations
produced a considerable knowledge of the properties of elements and their compounds
早在17世纪末期,罗伯特·波义耳就开 始了这项工作,他提出了现在公认的元素概念,大
量的研究使我们对元素及其化合物的性质有了相当的了 解。
2、Thus it is possible to arrange the list of elements in tabular form with elements
having similar properties placed in vertical columns。于是,将具有类试性质的元素
排成纵列,从而把元素排成表格形式是可能的。
3、However, as is characteristic of most transition elements, they form ions having other charges
as well.然而,像许多过渡元素所具有的特点一样,他们也形成具有其他电荷的离子。
4、They form such a wide Variety of compounds that it is not practical at this point to present any
examples as being typical of the behavior of the respective groups.他们形成了各种不同的化合
物,在这一点上我们甚至不 能举出任何能表现各族元素典型变化的例子。
5、It would be impossible to learn properties and behavior of even a fraction of this number if it
had to be done on the basis of individual compounds 如果根据各别化合物来了解这么多化合
物的性质和行为,即使是其中的一小部分也是不可能的。
6、For example. HCl is classed as an acid. and by becoming familiar with the behavior of acids as
a distinct class, we are at once aware of the general properties of the compound。例如,盐酸归类
为酸,由 于已熟悉作为不同类别酸的性质,我们就会立即知道这一类化合物的一般性质。
7、When an acid, base, or salt is dissolved in water the resulting solution is a
conductor of the electric current and is termed an electrolyte. If no conduction
of current occurs, the compound is known as a nonelectrolyte. 当一种酸碱或盐溶解
在水中,这个溶 液将成为电流的导体并且归类为电解质,如果不能使电流通过,这个化合物
被归类为非电解质。
8、Acids, in the conventional sense, may be recognized by noting that the H is written
first in the formula and that the rest of the compound is generally nonmetallic.
Ex., HCl, H
2
SO
4
, HClO.算,按传统的观念,在化学式第一个开头的字母为 H,余下的是非
金属元素的化合物被认为是酸。
9、Just as the characteristic part of an acid is hydroxide ion, so the characteristic
part of a base in water solution is the hydroxide ion, OH~.正如特色的部分,所以酸
氢离子特征的一个组成部分,基地在水溶液中离子的氢氧化物,喔~。
10、In these cases the oxidation state of the metal is shown by a Roman numeral
in parentheses immediately following the English name of the metal which corresponds
to its oxidation number在这种情况下,金属氧化态是紧接着英语名称之后再圆括号中用
罗马 数字表示,该数字与金属的氧化数一致。
11、The student should have a good start in learning nomenclature if he has learned
the Valence Table 3 which gives both charges on ions and names for the more common
ones。
一个学生如果掌握了给出离子电荷和较常见的离子名称的价见表3,他在掌握命名 方面就必
定有了有一个好的开端。
12、The older system of naming and one still widely used employs Greek prefixes for
both the number of oxygen atoms and that of the other element in the compound. 这个旧的系统的命名与一个更广泛的应用都雇用了希腊的前缀的数量的氧原子和其他元素的
化合物/
13、When series of locants containing the same number of terms are compared term
by term, that series is
of the first difference. This principle is applied irrespective of the nature of
the substituents. 当逐一比较包含着相同(碳原子)数目的词语的许多位次时, 根据第
一个位次差值的理由,含最低数字的是最低者。
14、The characteristic groups listed in Table 11 are always cited by prefixes, as
given in the Table, to the name of the parent compound 表11中列出的特征性基团,
对母体化合物名称来说总是按表中所给的前缀加以引用。
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