ZL03 2 354312.The innovations include: automatic self-closing and reliably sealed valve structure: the design of duplex valve clack with pilot valve to tackle the problem of reverse seal structured valve being difficult to be opened; an automatic drain control device to automatically drain the remaining water from the hydrant; protective plate provided between the hydrant body and the valve block to serve as a connection between the hydrant body and the valve block, which is the first one to be damaged when the ground hydrant is clashed, and prevent pulling-off of the whole above-ground part of the fire hydrant, so as to properly protect the main parts from any damage. The self-closing and reliably sealed valve now prevents drain of water, and only the damaged protective plate is needed to be replaced before immediate re-operation. Thus the repair work after clashing is very easy and simple.

其創(chuàng)新點(diǎn)為：具有能自動(dòng)關(guān)閉并可靠密封的閥門結(jié)構(gòu)：采用有先導(dǎo)閥復(fù)式結(jié)構(gòu)閥瓣設(shè)計(jì)JiZZ成熟丰满熟妇，解決反向密封結(jié)構(gòu)閥門開啟沉重費(fèi)力的難題；設(shè)計(jì)自控排水裝置欧美日韩国产黄色，能自動(dòng)排除栓體內(nèi)余水欧美熟妇性XXXX交20p；在栓體和閥體之間設(shè)計(jì)撞裂板，它既起到連接栓體和閥體的中介作用欧美日韩在线观看二区视频，又可在地上消火栓被撞擊時(shí)率先破裂毀壞国产哟一区二区三区视频在线看，并使露出地面的栓體不見整體脫落，有效保護(hù)各主體部件的完好無(wú)損自拍视频偷拍天堂，而此時(shí)閥門的自閉式結(jié)構(gòu)可靠密封閥門阻止水源外泄国产三级精品三级，修復(fù)時(shí)只需更換損壞的撞裂板即可立即復(fù)位投入使用，使被撞后的修復(fù)工作變得十分輕松簡(jiǎn)便五月综合色色。

The rover was to use its rock abrasion tool Sunday to grind away at a martian outcropping dubbed "Flat Rock," but the tool left "no discernible impression on the rock," NASA's Jet Propulsion Laboratory reported.

火星車計(jì)劃周日用其巖石削磨工具來(lái)切割一塊被稱為"平石"的露出地面的火星巖石思思99re6精品视频免费观看，但據(jù)美國(guó)宇航局噴氣推進(jìn)實(shí)驗(yàn)室的報(bào)告稱，該工具"在巖石上沒有留下明顯的痕跡"国模AⅤ私拍一区二区。

They estimate this would allow the Omani outcrop, which extends down some 5km, alone to absorb some 4 billion tonnes of carbon dioxide a year, which is a substantial part of the annual 30 billion or so tonnes of the gas that humans send into the atmosphere, mostly by burning fossil fuels.

他們估計(jì)這將使阿曼這綿延五公里的露出地面的巖層最新在线国产，僅其一年就能吸收40億噸二氧化碳，這相當(dāng)于人類每年向大氣中排放的300億噸氣體的很大一部分欧美一级特黄大片在线播放一，這些氣體主要由于人們?nèi)紵茉串a(chǎn)生的一级特黄AAA片免费女。

Tom loped forward, found an outcropping of rock, and took cover under it, waiting for them to catch up.

湯姆大步向前跑，找到一塊露出地面的巖石日韩欧美一级A片在线，在它下面隱蔽国产精品一在线观看，等待同伴們跟上來(lái)。

Something, such as an outcropping of rocks, that extends outward.

突出物向外伸出物97人人摸,人人操，如巖石露出地面的部分

A vizcacha, close relative of the chinchilla, rests on an outcropping in Chile's Atacama Desert.

意譯：智利的沙漠美女黄色国产网站，有一只南美粟鼠在露出地面的巖層休息。

I could see the others all there; Esme, Emmett, and Rosalie, sitting on abare outcropping of rock, were the closest to us, maybe a hundred yards

我看見別的人都已經(jīng)到了：艾思梅淫荡丝袜美腿激情，艾美特和羅莎莉正坐在一塊露出地面的光禿禿的巖石上销魂美女一级毛片，他們離我們最近，大概有一百碼的距離私人福利影院。

The part of a plant, such as a rutabaga, that is above the ground.

梢：蕪菁甘藍(lán)等植物露出地面的部分

Ever since people had begun to catalog the strata in particular outcrops, there had been the hope that these could somehow be used to calculate geological time.

從人們開始對(duì)露出地面的特殊巖層進(jìn)行分類的時(shí)候起美女黄网在线视频免费观看，大家就開始認(rèn)為這些巖石可能會(huì)以某種方式被用于計(jì)算地質(zhì)年代。

The rocky outcrops on the beach in Mughsil contain many blowholes which burst dramatically during high tide.

在Mughsil的海灘上欧美激性，露出地面的巖脈有許多的噴出孔国语对白偷拍偷窥，當(dāng)海水漲潮時(shí)，便會(huì)戲劇性地爆發(fā)美女被操出水高潮网站，吸引眾人的目光免费A片视频日本一区二区三区。