【primary_standards】什么意思_英语primary_standards的翻译_音标_读音_用法_例句_在线翻译

primary standards

原标准（primary standard 的名词复数）
主基准（primary standard 的名词复数）
一级标准，主标准（primary standard 的名词复数）

网络释义 专业释义

基准试剂

基准试剂基准试剂(primary standards)是纯度高、杂质少、不改变性别好、化学组分恒定的化合物。在基准试剂中有容积阐发、ph测定、热值测定等平分类。

基于96个网页-相关网页

初级标准

美国聯邦标准---1970 criteria pollutants (提出) (a) primary standards(初级标准)：was immediate protection of the public health regandless of cost (非做不可) (b) secondary standards(二级标准)：to prot...

基于8个网页-相关网页

短语

Common Primary Standards 常用的基准物质

primary standards laboratory 原级标准实验室

WMO primary standards 世界气象组织一级标准气

Primary Standards and Methods 主要测试方法与标准

primary standards of wavelength 原始波长标准

national primary kilogram standards 国家千克基准器

primary drinking water standards 饮用水基本标准

primary science curriculum standards 小学科学课程标准

更多收起网络短语

计算机科学技术

主标准

·2,447,543篇论文数据，部分数据来源于NoteExpress

双语例句 权威例句

For some research purposes and possibly for referee work, analyzed primary standards may be obtained from the U. s. Bureau of standards.

对于某些研究工作和仲裁工作，可以从美国标准局获得经过分析的一级标准物。

youdao

更多双语例句

Earlier this decade, he worked closely with Republican President George W. Bush to raise primary and secondary academic standards.

FORBES: The Senate
The Department for Education said that where English teaching was concerned, the aim was to ensure that pupils left primary school with high standards of literacy.

BBC: New curriculum 'to make languages compulsory from seven'
The minister emphasised the importance of improving numeracy and literacy standards at primary schools so pupils are on a level playing field when they reach secondary school.

BBC: Debate on the ESTYN report

更多权威例句

应用推荐

$firstVoiceSent

- 来自原声例句

目录

primary standards

网络释义 专业释义

相关文章

双语例句 权威例句

修改单词