主标题 (H1或者H2)
This is the energy level diagram of H2.
这是H2的能级图。
H2 viruses may also pose a pandemic threat.
H 2病毒也可能造成大流行的威胁。
The question now is, is H2 stable or will it not form?
现在的问题是，H2稳定吗，它到底会不会形成？
However, H2 BOX still creates strong impact to people.
然而，H 2BOX仍然给人们带来了强烈的冲击。
If so, then the Hummer H2 is definitely the car for you.
如果是这样的话，那么肯定是悍马h 2车适合您。
By default, it will use H2 which needs no additional setup.
在没有进行额外配置的情况下，它默认使用H2。
The beginning of a subgroup is identified by an h2 element.
子组的开始部分由h 2元素定义。
Structuring page content with heading levels (h1, h2, etc.).
使用多级标题(h 1,h2，等等)结构化页面内容。
What is the energy change going from two atomic hydrogens to one H2?
什么是能量的改变，从两个原子氢到H2分子？
H2 BOX is an extension showroom of H2 CONDO displaying typical room unit.
H 2BOX是H 2公寓房间展示典型户型的一个延伸展厅。
Metoclopramide, in conjunction with an H2-receptor blocker, may be more efficacious.
胃复安联合h - 2受体阻断剂或许更有效。
Later on, we'll learn that hydrogen as we typically encounter it is H2, the molecule.
之后我们知道，氢气是H2，是一个分子。
H2 is formed when two hydrogen atoms come together and bind to one another to make a molecule.
当两个氢原子相遇并彼此结合在一起，便形成了氢分子。
But because H3N2 completely replaces H2N2 in people, no one born since 1968 has any immunity to H2.
但因为H3N2在人体完全取代H2N2所以在1968年之后出生的人没有一个人对H2有任何免疫性。
Note: In stretched form, the H2 will often carry girls with bridal sashes, tiaras, and tramp stamps.
注意：在拉紧状态下，H 2经常带着有新娘腰带、头冠和流浪汉标签。
It's standard practice that h1 text is bigger than h2, and header text is bigger than paragraph text.
标准做法是h1的文字大于h2的文字，头部文字大于段落文字。
Earlier this week, Nocera reported devising a cheap catalyst that USES three different metals to form H2.
这周初，Nocera报道发明了一种廉价催化氢气形成的催化剂，使用了3种不同金属。
Molecular hydrogen (H2) radiated the heat out of the clouds, so we need to know how much H2 was in the cloud.
氢分子(H2)在初生云周围散射热量，因此我们要知道在初生云中氢分子的数量。
t1/t2 2 would be the square root of h1 divided by h2 That is the dimensional analysis argument h1/h2 that we have there.
也是这样2，And，so，the，time，t1，divided，by，t2,通过之前的量纲分析得到2,它等于,根号下。
We've put the entire post title into an H2 heading and added the phrase "Post Title" to the beginning of the post title.
我们将整个文章的标题放到了一个H2标题中，并且在文章标题的开头添加短语“文章标题”。
Consider the more realistic case, where the h1 and h2 statements are hundreds of lines apart in a massive CSS stylesheet.
考虑更现实的情况，h1和h2语句是分隔在大量css样式表中的数百行。
The section headings (h1 and h2) appear at the same level as the paragraphs, with no structural tags to group the sections.
小节标题（h1和h2）出现在与段落相同的级别，并且未使用结构标记对小节进行分组。
The scientists are working on ways to recombine the protons and electrons back into hydrogen atoms and then molecules of H2.
科学家们目前正在研究使质子和电子重新组合为氢原子的方法，再使原子变为H2分子。
Inside the inner for-each-group, it tests to see whether the group contains an h2 element using the XPath current-group [self: : h2].
在内部for - each - group中，它将使用XPathcurrent - group [self： h2]测试组是否包含h 2元素。
For instance, in XHTML, heading elements (h1, h2, h3, and so on) can be children of the body, a div, a table, and several other elements.
比方说，在XHTML中，标题元素(h 1、h 2、h3等等)可以是body、div、table或其他几种元素的孩子。
Hydrogenation: Chemical reaction between molecular hydrogen (H2) and another element or a compound, usually in the presence of a catalyst.
氢化：通常在有催化剂的情况下，氢分子(H2)与其它元素或化合物之间的化学反应。
On the hotel website make sure that the keyword density, H1 and H2 headers, page titles and meta data reflect best practices and latest trends.
确保酒店网站的关键词、H1和H2标签、页面标题和元数据反映了最新趋势和应用实践。
You'd have to go back and change your h3 elements to h2 elements, or h4 elements, or whatever element identified their role in their new context.
您需要回去并把h3元素修改为h2元素或者h 4元素，或者任何能在新上下文中识别自己角色的元素。
You'd have to go back and change your h3 elements to h2 elements, or h4 elements, or whatever element identified their role in their new context.
您需要回去并把h3元素修改为h2元素或者h 4元素，或者任何能在新上下文中识别自己角色的元素。
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