在线观看亚洲精品专区-在线观看亚洲免费-在线观看亚洲免费视频-在线观看亚洲欧美-欧美freexxx-欧美free嫩交video

食品伙伴網服務號
 
 
當前位置: 首頁 » 專業英語 » 英語短文 » 正文

什么是血壓

放大字體  縮小字體 發布日期:2008-04-11
核心提示:Blood is carried from the heart to all parts of your body in vessels called arteries. Blood pressure is the force of the blood pushing against the walls of the arteries. Each time the heart beats (about 60-70 times a minute at rest), it pumps out bl


    Blood is carried from the heart to all parts of your body in vessels called arteries. Blood pressure is the force of the blood pushing against the walls of the arteries. Each time the heart beats (about 60-70 times a minute at rest), it pumps out blood into the arteries. Your blood pressure is at its highest when the heart beats, pumping the blood. This is called systolic pressure(收縮壓). When the heart is at rest, between beats, your blood pressure falls. This is the diastolic pressure(舒張壓). 

    Blood pressure is always given as these two numbers, the systolic and diastolic pressures. Both are important. Usually they are written one above or before the other, such as 120/80 mmHg. The top number is the systolic and the bottom the diastolic. When the two measurements are written down, the systolic pressure is the first or top number, and the diastolic pressure is the second or bottom number (for example, 120/80). If your blood pressure is 120/80, you say that it is "120 over 80." 

    Blood pressure changes during the day. It is lowest as you sleep and rises when you get up. It also can rise when you are excited, nervous, or active.

    Still, for most of your waking hours, your blood pressure stays pretty much the same when you are sitting or standing still. That level should be lower than 120/80. When the level stays high, 140/90 or higher, you have high blood pressure. With high blood pressure, the heart works harder, your arteries take a beating(你的動脈受到沖擊), and your chances of a stroke, heart attack, and kidney problems are greater.


更多翻譯詳細信息請點擊:http://www.trans1.cn
 
關鍵詞: 血壓
[ 網刊訂閱 ]  [ 專業英語搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業英語
點擊排行
 
 
Processed in 3.184 second(s), 540 queries, Memory 2.8 M
主站蜘蛛池模板: 性久久久久久久久久 | 久久黄色精品视频 | 国产福利观看 | 啪啪网免费视频 | 日女人免费视频 | 日本高清免费一本视频在线观看 | 苍井优一级毛片免费观看 | 丁香六月综合激情 | 亚洲www视频| 久久成人国产精品免费 | 天天夜夜操 | 亚洲成网站 | 午夜精品久久久久久久 | 欧美午夜性刺激在线观看免费 | 久久澳门 | 亚洲第一伊人 | 91md天美精东蜜桃传媒在线 | 三级网在线 | 最近视频在线播放免费观看 | 日本五十交尾在线观看 | 亚洲黄网址 | 天天干天天干天天操 | www五月天com| 日本一区二区在线不卡 | 日本亚洲卡一卡2卡二卡三卡四卡 | 色婷婷久久合月综 | 一级特黄牲大片免费视频 | 韩国美女丝袜一区二区 | 又黄又爽又猛大片录像 | 黄色字幕网 | 色综合激情丁香七月色综合 | 天堂视频网| 狠狠噜噜| 日本女人啪啪 | 四虎最新永久在线精品免费 | 老色皮永久免费网站 | 亚洲男人的天堂久久无 | 日本不卡视频一区二区三区 | 国产视频第一页 | 三级黄色在线观看 | 亚洲国产成人久久午夜 |