relative density

常见例句

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?