| 释义 |
mass number ˈmæsnʌmbər 高Ｔ短语⁴⁸²⁷³
基本英英词源近义反义Thesaurus例句
n.原子质量数
Noun:
the sum of the number of neutrons and protons in an atomic nucleusmass,原子质量，number,数量。近义词 nucleon number核子数,质量数…
noun.protons and neutrons
同义词 atomic mass,atomic number,atomic volume,atomic weight,nucleon number For the mass number of web pages needed to be crawled, how the information crawling system gets more web pages with good quality effectively, is related to the system performance.
信息采集系统需要采集的页面数量非常浩大，如何有效地采集到高质量的网页关乎系统性能。 fabiao
An isotope of hydrogen with mass number greater than1; deuterium or tritium.
原子质量数大于1的氢的同位素；氘或氚。 odict.net
Bosons include mesons, nuclei of even mass number, and the particles required to embody the fields of quantum field theory.
玻色子包括介子、偶质量数的原子核以及体现量子场论中的场所需要的粒子。 tdict
Such current disturbs the zero out-put basic line of the light mass number region, so that it's very difficult to measure and record the height of spectrum peaks of the light mass number region.
这种电子流对轻质量部分质谱的零输出基线起干扰作用，致使这部分谱峰的峰高不能很好地测量和记录。 cnki |