因此，无论是疏松或胶结，沉积物总体积都有一部分是由空隙组成的。
Thus a proportion of the total volume of any sediment, loose or cemented, consists of empty space.
因此，举个例子，沙岩可以和构成它的疏松的沙粒一样具有多孔渗水的特点。
The result is that sandstone, for example, can be as porous as the loose sand from which it was formed.
基于此，它选择将重点放在生命科学和医学研究上，并在最近呼吁提出有关肌肉萎缩、骨质疏松症和免疫系统的实验提案。
From this, it has opted to focus on life science and medical research, and recently called for proposals for experiments on muscle wasting, osteoporosis and the immune system.
生理学家发现，失去重力后身体会失去力量，这使得宇航员骨质疏松、肌肉松弛，心血管功能也相应退化。
One thing that physiologists have learned is that without gravity our bodies begin to lose strength, leaving astronauts with weakened bones, muscles and cardiovascular systems.
较紧密的木层比较疏松的木层颜色更深。
The denser layers are generally darker than the less dense layers.
研究土壤疏松对马铃薯生理特性和块茎产量形成的影响。
The effects of soil loose on physiological characters and tuber yield formation of Solanum tuberosum L were studied.
细胞主要呈“成纤维样”，但体积较大、形状不规则、细胞质突起多，细胞核大而疏松，核仁明显。
The cells show fibroblast-like irregular appearance, many cytoplasm ecptoma, puff and large nucleus with obvious nucleoli.
我们已经治愈了老鼠的骨质疏松症。
实例包括压疮、尿路感染、骨质疏松症和疼痛。
Examples include pressure ulcers, urinary tract infections, osteoporosis and pain.
负重有氧锻炼，比如走路，减少骨质疏松的发病。
Weight-bearing aerobic exercises, such as walking, reduce the risk of osteoporosis.
如果你是白人或亚裔的话，你患上骨质疏松的风险最高。
You're at greatest risk of osteoporosis if you're white or of Asian descent.
海默说：“直到你骨折了，你才会知道自己得了骨质疏松。”
“There are no symptoms of bone loss until you get a fracture, ” Somer says.
力量训练会向骨骼施压，从而增加骨密度，降低骨质疏松风险。
By stressing your bones, strength training increases bone density and reduces the risk of osteoporosis.
原木中较长的纤维较容易分离并疏松成柔软的卫生纸。
Longer fibres in virgin wood are easier to lay out and fluff up for a softer tissue.
如果你有骨质疏松或者牙周疾病的家族史，牙齿检查就更有必要了。
And if you have a family history of osteoporosis or periodontal disease, dental checkups are a must.
在地球上，这种情况常常会导致骨质疏松，这将使得骨头容易骨折。
On Earth, the condition often leads to osteoporosis, which leaves bones susceptible to fractures and breaks.
如果你关心自己的骨骼健康或骨质疏松风险因素的话，请咨询你的医生。
If you're concerned about your bone health or your risk factors for osteoporosis, consult your doctor.
参与者的平均年龄是72岁，他们身体健康，虽然个别人患有骨质疏松。
The participants' average age was 72 and they were all considered healthy, although some had osteoporosis.
据西班牙研究发现，适量饮用啤酒的人骨骼更健壮，并且少患骨质疏松。
A Spanish study found that regular beer drinkers had stronger bones and were less likely to suffer from osteoporosis.
各种疾病，像糖尿病，骨质疏松，心脏病和癌症等，都会加速人体的衰老。
Aging also is accelerated by the increasing risks of all degenerative diseases such as diabetes, osteoporosis, heart disease and cancers.
一些医疗机构敦促女性通过改变生活方式、而不是药物来应对骨质疏松症。
Some clinics urge women to fight osteoporosis with lifestyle changes rather than pharmaceuticals.
他说，他已经观察到数个发生在青少年身上的骨质缺乏和骨质疏松症病例。
who said he had observed cases of osteopenia and osteoporosis in teenagers.
这增加了他们患骨质疏松的危险，骨质疏松的症状是骨头薄，脆，容易碎。
This increases their risk of osteoporosis, a condition marked by thin and weak bones that break easily.
对60岁以上的人而言患骨质疏松症更为常见，尤其是女性过了更年期以后。
After age 60 osteoporosis becomes much more common, particularly for women who have gone through the menopause.
从长远来看，健康问题会更加严重，盐的摄入也和骨质疏松与高血压关系密切。
In the long term the health problems are more serious as salt intake is linked to osteoporosis and high blood pressure.
很多人对含钙食品吃得不够多，这样会增加罹患骨质疏松症或骨骼脆弱的风险。
Many people don't eat enough calcium-containing foods. This can add to a person's risk of developing osteoporosis, or weakened bones.
如果检测显示你患有骨质疏松症，一些重要的先进的治疗方法将会对你有帮助。
If testing shows that you have osteoporosis, some major advances in treatment can help.
如果你有骨折史，或者你的家人有骨质疏松史，那么在跳之前让内科医生检查下。
If you have any history of fractures or a family history of osteoporosis, check with a physician before jumping.
另外一些国家，如非洲国家，人们摄入的钙少得多，骨质疏松的的发病率却更低。
Other countries — African nations, for example — consume far less calcium and tend to have a lower incidence of osteoporosis.
另外一些国家，如非洲国家，人们摄入的钙少得多，骨质疏松的的发病率却更低。
Other countries — African nations, for example — consume far less calcium and tend to have a lower incidence of osteoporosis.
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