relative density
音标发音
- 英式音标 [ˌrel.ə.tɪv ˈden.sɪ.ti]
- 美式音标 [ˌrel.ə.t̬ɪv ˈden.sə.t̬i]
- 英式发音
- 美式发音
基本解释
- [物] 相对密度（等于specific gravity）
英汉例句
- Relative density, tensile strength and elongation of sintering specimens were also measured and analyzed.
并对烧结样的相对密度、抗拉强度、延伸率等性能进行了测定与分析。 - No natural reactors exist today, as the relative density offissileuraniumhas now decayed below that needed for a sustainable reaction.
现在不存在自然的核反应了，因为裂变铀的浓度现在已经衰减到了无法满足核反应需求的地步。 - These maps show the location and relative density of mangroves, which cover roughly 137,760 square kilometers (53,190 square miles) of Earth’s surface.
这些地图显示了红树林的位置和相对分布密度，它们大约占据地球表面的137,760平方千米（53,190平方英里）。 - Women must be informed of their own breast density, the associated risks, and the best available screening modalities for breast cancer relative to their breast density.
FORBES: Beware Overreaching Government Efforts to Detect Breast Cancer - Epidemiologic studies over the past 40 years have identified numerous risk factors for breast cancer, including: older age, an early age at menarche, a late age at first full-term birth, not having children, a family history of breast cancer in a first-degree relative, greater height, higher circulating estrogen levels, postmenopausal hormone use, breast density, history of breast biopsies, obesity (for postmenopausal breast cancer), and exposure to ionizing radiation.
FORBES: After 40 Years Of Research, What Do We Know About Preventing Breast Cancer?
双语例句
权威例句
词组短语
- relative biotic density index 相对生物密度指数的
- relative optical density 相对光密度;相对光密度值
- relative vertebral density 相对脊椎密度
- relative population density test 相对菌丛密度试验
- maximum relative specific density 最大相对密度
短语
英英字典
- the mass of a particular volume of a substance when compared with the mass of an equal volume of water at 4°C
- the ratio of the density of a substance to the density of a standard substance under specified conditions. For liquids and solids the standard is usually water at 4C or some other specified temperature. For gases the standard is often air or hydrogen at the same temperature and pressure as the substance ( symbol: )&rarrsee also specific gravity , vapour density
剑桥英英字典
柯林斯英英字典
专业释义
- 相对密度
The sample prepared at 300℃under the pressure of 6GPa is 40-50nm in size and relative density 99%.
300℃、6GPa 制得了晶粒尺寸 40-50nm,相对密度大于 99%的 ZnO 纳米块体。 - 致密度
The density of open-cell Fe-Ni foam is in the range 0.2g/cm~3～1.2g/cm~3 and the relative density is 2.3%～12%.
泡沫Fe-Ni材料的密度为0.2g/cm~3～1.2g/cm~3,致密度为2.3%～12%。化学
- 相对密度
Of all the binders used,the tape fabricated with 20wt%PVA+80wt%B-1070 has high green density. After sintering at 1600℃for 2h,the relative density of 96Al2O3 substrates was above 97%（3.73g/cm3）.
以复合粘结剂20wt%PVA+80wt%B-1070为粘结剂的流延素坯在1600℃保温2小时烧结能获得相对密度达97%以上（3.73g/cm3）的96Al2O3基片。 - 致密度
With increasing of TiB2 content in the original powder system, liquid sintering decreases, and the relative density, bending strength and fracture toughness of the products are increased.
随着TiB2含量增加，液相烧结作用增强，产物致密度提高。土木建筑工程
- 相对密实度
For Fujian standard sand, using the dry sampling method and water pluviation method, controlling the initial relative density 50%, the initial surrounding pressures 100,200, and 300kPa, consolidated drained tests are studied.
针对福建标准砂,采用干装法和水下沉积法制备试样,控制初始相对密实度为50%,初始固结围压分别为100、200、300kPa,进行了三轴固结排水剪切试验。物理学
- 相对密度
- 相対密度
- 相对疏密程度
- 相密度
- 相对密度
- 相对密度
- 相对密度
- 相对密度