A device used on the outside of the casing of a well to seal off formations or to protect certain zones.
为封堵地层或保护某些层段在井内套管外面所用的装置。
MicroRNAs could be used to seal off human cells from disease-causing viruses, or to disable viruses that gain entry.
小分子核糖核酸可以用来封闭人体细胞,使之免受致病病毒的侵扰,或者使病毒丧失侵入细胞的能力。
If the efforts to seal off the leak that was left behind do not succeed soon, the final tally of destruction, if not death, may rise quite quickly.
一旦早已延迟的封堵漏油井的努力未能成功,即使没有人员死亡,那么最终的损失统计数据将可能急速攀升。
On May 5th remotely operated submersibles managed to seal off the smallest of the three leaks, which did not reduce the overall flow, but has simplified matters.
5月5日,几艘遥控潜艇成功地封住了三处漏油口中最小的一处,尽管这不能减少总泄油量,但是已经使情况变得简单些。
First, remote-controlled robot submarines have been deployed to try to seal off the oil well altogether by activating a massive device called a blowout preventer.
首先,他们已经部署了遥控机器人驾驶的潜水艇潜入水下试图通过激活防喷器来关闭油井。
Civil engineering (3%), residential houses (decorative cloth), construction field (high strength and toughness, moisture and water proof and so on), as well as fabrics used to seal off road.
土木工程(3%),住宅(装潢布)、建筑工地(高强韧性、防湿防水等),又如道路隔绝水等织物。
Two hydraulic steel gates are raised, so as to seal the gondola off from the water in the canal basin.
两个液压钢制闸门抬高,以将贡多拉与运河盆地里的水隔离开。
A variety of schemes to either block up or seal off the blowout preventer are in development.
多种封闭或密封防喷装置的方案也在构思之中。
If a stable column of mud has been set up in the well, keeping the oil at bay through its sheer weight, the next step would be to set cement in the well and seal it off permanently.
如果一个稳定的泥浆柱能在油井里成型,并通过它十足的压力将石油限制在海湾范围,那下一步就是将井里的泥浆粘合好,使油井永久封闭。
Rather than brokering transactions, Alibaba charges suppliers for listing items and for extra promotion, leaving them to seal the transaction off the site.
但阿里巴巴并不是扮演经纪行的角色,该网站向供应商收取发布产品信息和额外推广的费用,让他们在网站之外达成交易。
These areas are supposed to be sealed off, but sometimes the seal is ineffective.
有时我们认为采空区已封闭了,但可能并未有效封闭。
"Moments later the seal scrambled off and swam to the safety of a nearby ice floe," wrote the scientists.
“片刻以后,海豹匆匆下来,游往附近浮冰的安全处。”科学家们写道。
BP oil company has begun pumping heavy mud into a blown-out well in the Gulf of Mexico in an effort to seal it off permanently.
能源公司BP开始对墨西哥湾破损油井注入大量泥浆,试图永久封堵这口漏油的油井。
Harry, Hermione, and Neville reach the exit and seal it off, only to realize they've separated from Ron, Ginny, and Luna.
哈利、赫敏和纳威到达了出口而且把它封住,却意识到他们已经和罗恩、金妮和卢娜分开了。
When scientists blocked the activity of MEL-28, they discovered that patches of membranes attached themselves to DNA but couldn't seal themselves off into a complete envelope.
当科学家们封闭了MEL - 28的功能后,他们发现这些小块儿的膜与DNA粘附在一起,但并不能使自身密封成一个完整的膜。
When that magma seal gives way it's like taking your thumb off the top of the bottle, and you don't want to be camping on the volcano when that happens!
当岩浆盖子移开时,好比把你的姆指从瓶口挪开,就会发生你在宿营时最不想看到的火山爆发。
Hydrophobic coatings seal lens surfaces with an ultra-smooth polymer, making it easy to clean the eyeglass lenses from dirt, water or oily contamination can simply be wiped off.
加硬防水膜在镜片表面封上一层非常致密平滑的聚合物,使得镜片表面灰尘、水及油污清洁异常方便。
If it is being destroyed from within, then is Hina breaking her own seal to ward you off? This is sacrelige.
假如护符从内部被破坏,那么是雏打破自己的封印去保护你逃脱?。
Objective To investigate the clinical significance between thoracic infections and the replacing time of one-off water seal bottle.
目的探讨胸腔感染与一次性水封瓶更换时间长短的临床意义。
The water flow entering the floor drain core changes to realize on or off of the magnetic seal floor drain core.
通过进入地漏芯水流的变化,实现磁力密封地漏芯的打开与关闭。
Whisks off the years thick to seal the dust, opens the happy world memory the strobe, cannot put behind the picture scroll, eagerly anticipates me to lead the way silently.
拂去岁月厚厚的封尘,敞开心的世界记忆的闸门,一幅幅一帧帧不能忘却的画卷,引领着我默默地前行。
The current centralizer has such defects as being apt to tire and wear off, worse seal and the wasting of fluid resistance.
现有扶正器有易疲劳损伤、对接不严、流阻损耗的缺点。
I happened to have one of the bags here to show you and pulled the seal kind of half off it.
我这里刚好有这样的一个袋子给大家看一下,这个尿袋的盖子打开了一半。
A baby seal on an island off of Russia has been abandoned by its mother and shunned by peers due to its born ugliness.
因为出生丑陋,一个俄罗斯小岛上的一只小海豹被母亲抛弃并被同伴排斥。
In the operation of the oil slurry pump, the pump had to be shut off several times because of the leakage occurred in the mechanical seal.
油浆泵在运行过程中,多次因机械密封失效而停泵紧急检修。
However the manager did admit he was willing to fight off other clubs to seal a deal.
然而,主帅的确承认他在努力击败其他球队而完成签约。
However the manager did admit he was willing to fight off other clubs to seal a deal.
然而,主帅的确承认他在努力击败其他球队而完成签约。
应用推荐