- 重点词汇
- 相关例句
The assay of content of acid using phenolphthalein indicator and NaOH as titrant was developed.
提出了以酚酞为指示剂,氢氧化钠为滴定剂测定甲氧胺盐酸盐含量的方法.
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By diping in NaNO _ 2-NaOH solution and heating to 90 ℃, it could be destroyed too.
使用适量的亚硝酸钠和氢氧化钠溶液加热至约90℃浸泡, 可将丁二烯过氧化物破坏.
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粘胶的生产过程包括纤维素与氢氧化钠反应形成碱纤维素的过程.
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The substring starts at a specified character position and has a specified length.
子字符串从指定的字符位置开始且具有指定的长度.
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Extracts a substring that contains only the characters not in a set.
功能:从字符串位置0开始查找,提取首次仅仅出现在匹配字符表里的连续的子字符串.
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The following code example uses regular expressions to look for exact substring matches.
下面的代码示例使用正则表达式查找完全匹配的子字符串.
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Returns the index of the first character of a specified substring in a string.
返回指定子串首字符在串中的索引.
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Comments: Unit has resistance around 5.35 yuan, to recommend appropriate make-band operation.
点评: 该股在5.35元附近有阻力, 建议适当做波段操作.
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每月一次的免费聚会包括:教育专家点评, 专业选择和准备,成功家长或学生分享等等.
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Comments: reporters watching the play, are many similar feeling with the audience.
点评: 记者观看该剧后, 也有许多感觉与观众相似.
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