A closed system would be, for instance, a glass of ice water with an ice cube in it, with the lid on top.
一个封闭系统可以是，比如说，一杯放了一个冰块的冰水，顶上加了盖子。
Usually at the beginning of school, the noise of desks being opened and closed, and lessons repeated at the top of the children "s voices could be heard out in the street."
平时，刚开始上课的时候，在街上就能听到课桌开开关关的乒乓声和孩子们一遍遍高声念课文的读书声。
The applications are started as lightweight windows called panels and the can stay on top of the screen even if one chooses another tab in the browser or it can be minimized or closed.
启动的应用是以轻量级的窗口（叫做面板）形式展现的，即便用户选择了另一个标签，这些应用还可以位于屏幕的最上方，同时用户还能够最小化或是将其关闭。
After working through her new repertoire, Tina closed the show with her first top-ten hit, Proud Mary.
在唱完所有新歌之后，蒂娜最后唱了一首她第一次打入排行榜前十名的歌曲《自豪的玛丽》。
While top managers are understandably closed-mouthed about their plans, Zara seems ideally positioned to penetrate the U.S. market in a major way.
尽管Zara的高层管理者闭口不提他们的计划，但看起来他要渗入美国市场是不可避免的。
Thee polls have now closed, so let's take a look at the top 12.
现在投票结束了，那么让我们一起看看12强都有谁。 。
The top cover is rotated and closed over the fuze.
顶盖是在引信旋转和封闭。
The business of choosing the main contenders for the top job would have been done behind closed doors, or with a limited franchise and a few weeks of campaigning.
它们最高职位的主要竞争者往往在幕后就已经确定，或者参选者只需要竞选几周，而选民只有有限的选举权。
When the cam has been set at the desired free resting position, "either closed or open" the top of the affixed components will be aligned.
如果在所需的停止位置设置凸轮，则无论是开还是关，所配置的隔间顶部都要对齐。
The surface force per unit area exerted at the top of a wellbore when it is closed at either the Christmas tree or the BOP stack.
当采油树或防喷器组关闭时，施加在井口单位面积上的力称之为为关井压力。
To operate the machine properly, you must keep the top closed while the machine is spinning.
为使机器运转正常，在它运转时必须始终将顶部盖上。
The polls have now closed, so let's take a look at the top 12.
现在投票结束了，那么让我们一起看看12强都有谁。
Need to check the oil box's bottom which outlet whether closed or not, after closed surely then open the top of oil box and add the sealing cover for the top orifice.
检查油箱底部放油口是否已关闭，确定关闭后再打开油箱顶部加油口密封盖。
Sadie closed the book and put it on top of Heng's school papers and then carefully placed the little red shoe on top of the book.
莎蒂合上书，把书放在了恒的学校试卷上，然后又小心地把小红鞋放在了书上。
A friend who is a top-notch technical analyst temporarily took a job as a broker after falling on hard times when his hedge fund closed.
我有个朋友，他是顶尖的技术分析师。他大亏了几次，只好解散了自己的对冲基金，找了一个临时工作，做经纪人。
Usually at the beginning of school, the noise of desks being opened and closed, and lesson repeated at the top of the children's voices could be heard out in the street.
平常，在开始上课时，在街上就可以听见书桌的开关声音和孩子们高声念书的声音。
GE Appliance built-in top control dishwashers integrate the control panel into the top of the door so they aren't visible when the dishwasher door is closed.
GE嵌入式顶部控制洗碗机的控制面板集成到门的顶部，以便当洗碗机门关闭时，它们是不可见的。
The tabloid, once Britain's top-selling Sunday paper, was closed earlier this month.
这家小型报纸，一度是英国销售量最大的星期日周报。在本月停刊关闭。
A Marine conservation zone that is closed to commercial fishing helps save the targeted fish species, or so one would hope. But what about birds or other top predators that dine on those species?
人们希望商业捕鱼场附近的海洋保护区多少可以救助受捕捞鱼类，但以这些鱼类为生的鸟类和其它顶端捕食动物又会怎样？
Through comprehensive analysis and discussion, the process of briquetting-smelting by closed-top blast furnace for copper smelting is selected.
通过综合分析与论证，选择了压团—炼铜密闭鼓风炉熔炼工艺。
After placement of the bottom stopper, the valve on the top stopper was closed and the core was withdrawn from the surrounding sediments.
塞上底端的塞子后，关上顶端塞子上的阀门，之后将样品柱从周围沉积物中拉出。
The intake stroke starts with the pistonat the top of the cylinder (intake valve open and exhaust valve closed) and stops with the pistonat the bottom of its travel.
进气冲程在活塞位与气缸顶部（进气门开启，排气门关闭）时开始，在活塞到达其行程的底部时结束。
Brewing the top grade green tea like west lake dragon well. It should be closed sealed just after flushing, but being catty-cornered with a bit edge out to avoid the leaves get yellow.
用盖碗冲泡西湖龙井之类的高档绿茶，冲水后杯盖不能立即平放密封，应该露边斜放，以免闷黄茶叶。
With the valve in the fully closed position the stem length shall protrude a distance of at least twice that of the stem diameter above the top of the mounting flange.
在阀门完全关闭状态下，阀杆在连接法兰顶端上方需高出至少相当于阀杆直径两倍的长度。
With the valve in the fully closed position the stem length shall protrude a distance of at least twice that of the stem diameter above the top of the mounting flange.
在阀门完全关闭状态下，阀杆在连接法兰顶端上方需高出至少相当于阀杆直径两倍的长度。
应用推荐