齒石 的英文怎麼說

中文拼音 [chǐdàn]
齒石 英文
dental calculus
  • 齒 : Ⅰ名詞1 （牙; 牙齒） tooth 2 （物體上齒形的部分） a tooth like part of anything 3 [書面語] （年齡...
  • 石 : 石量詞（容量單位, 十斗為一石） dan, a unit of dry measure for grain （= l00 sheng）
  1. Based on the principle of mechano - chemistry, the strong shock and crashing mechanical force produced by ls - 250 pulverizer can act to the surface of superfine carbon and white carbon particles during the process. the result of the experiment indicated that distortion and amorphism change occur to the surface crystal lattice of carbon particles, and the phenomena are prick up as the action time of mechano - chemical force

    依據機械化學原理利用ls一250型流能粉碎機高速旋轉的動齒工作過程中產生的強烈沖擊、碰撞機械力，使其作用於超細石墨及白碳黑顆粒表面，檢測表明，石墨粒子表面晶格發生畸變及無定形化，且隨著機械力作用時間的延長而加劇。
  2. Dithiocarbamate [ s2cnr2 ( dtc ) ] and it ' s derivates were applied in chemistry 、 medical 、 petrochemical and other fields, it can coordinated with all kinds of transition metals, the anion of bidentate ligand also bridges two transition metals

    摘要氨荒酸鹽[ s2cnr2 （ dtc ） ]及其衍生物早已廣泛應用於化學、醫學、石油化工等領域，它與所有的過渡金屬都可以進行配位，形成螯合物，雙齒的陰離子也可以作為橋鏈兩個過渡金屬的配體。
  3. The cutters have very hard teeth made from special steel or from diamonds.

    刀具上有用特種鋼或金鋼石製造的非常堅硬的齒。
  4. This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time

    該鉆機採用曲柄連桿、游梁式沖擊機構，使鉆機具有兩種沖擊功能;正常鉆進以連桿沖擊為主，遇到特殊情況，用連桿沖擊不能鉆進時，可轉為卷揚沖擊，沖程可調，因連桿沖擊機構連續工作，所以實現了自動沖擊鉆進，可提高鉆進效率，減輕勞動強度;採用泵吸反循環的方式排渣，既能有效解決卵礫石地層、堅硬地層等特殊地層鉆進的困難，又很好地解決了沖擊鉆機效率低下的問題;採用直齒圓柱齒輪差速機構作為主卷揚的雙筒同步機構，既保證了鉆具處于平衡狀態，又大大簡化了該機構設計，降低了成本;該鉆機底盤行走移位採用步履式;鉆塔採用液壓起立，減少了輔助作業時間。
  5. Jagged rocks stuck up through the grass.

    鋸齒狀的巖石從雜草中突了出來。
  6. Dry products consist of crunchy kibbles, which help reduce the build - up of plaque and tartar on a cat ' s teeth

    干糧主要是成分是生脆的穀物，其主要是有助於減少貓咪牙齒的結石。
  7. The institute of vertebrate paleontology and paleoanthropology, part of the academia sinica in beijing, houses the fossilized teeth of the dinosaur beipiaosaurus

    北京中科院脊椎動物古生物古人類研究所擺放著一隻北票龍的牙齒化石。
  8. They studied about 80, 000 fossils, predominately molars and premolars, to reveal when 132 different species of small rodents first arose ? and when the animals disappeared

    他們研究了大約8萬塊化石.大多是臼齒和前臼齒的，以探明132個小型嚙齒目物種何時產生又何時消亡
  9. But the scrappy fossil record of early primates ? mostly teeth and isolated skeletal bones ? left researchers hard put to test these hypotheses

    但是，早期靈長類的化石記錄（以牙齒和零散的骨骼居多）實在太少了，讓研究人員難以驗證這些假說。
  10. The big dipper colloid mill principle of work full sound of something astir grinding pan tooth profile incline relative motion but becomes, high speed revolves, another static causes the material to receive the enormous shearing force and the friction force through tooth profile incline between material, at the same time and so on under the complex strength function causes the material for the fluid ultramicron smashing, the emulsification, the disperser, isotropically at the high frequency vibration and the high speed whirlpool, to stir and so on the function, may replace and surpass the stone mill, the sand blast machine, the ball mill, the breast is uniform machine, cuts the mulser, three rollers machine, organizes working efficiency and so on the stamp mill

    七星膠體磨工作原理充分動靜磨盤齒形斜面的相對運動而成，其中一個高速旋轉，另一個靜止使物料通過齒形斜面之間的物料受到極大的剪切力和摩擦力，同時又在高頻震動和高速旋渦等復雜力的作用下使物料為流體超微粒粉碎、乳化、分散、均質、攪拌等功能，可代替並優于石磨，砂磨機、球磨機、乳勻機、剪切乳化機、三輥機、組織搗碎機等工作效率。
  11. Seven stars colloid mill principle of work full sound of something astir grinding pan tooth profile incline relative motion but becomes, high speed revolves, another static causes the material to receive the enormous shearing force and the friction force through tooth profile incline between material, at the same time and so on under the complex strength function causes the material for the fluid ultramicron smashing, the emulsification, the disperser, isotropically at the high frequency vibration and the high speed whirlpool, to stir and so on the function, may replace and surpass the stone mill, the sand blast machine, the ball mill, the breast is uniform machine, cuts the mulser, three rollers machine, organizes working efficiency and so on the stamp mill

    七星膠體磨工作原理充分動靜磨盤齒形斜面的相對運動而成，其中一個高速旋轉，另一個靜止使物料通過齒形斜面之間的物料受到極大的剪切力和摩擦力，同時又在高頻震動和高速旋渦等復雜力的作用下使物料為流體超微粒粉碎、乳化、分散、均質、攪拌、混合等多種功能，可代替並優于石磨，砂磨機、球磨機、乳勻機、剪切乳化機、三輥機、組織搗碎機等工作效率。
  12. Petroleum and related products - determination of the ageing behaviour of inhibited oils and fluids - tost test - procedure for industrial gear oils

    石油及其產品.抑制油和流體的老化性的測定. tost試驗.工業齒輪油的程序
  13. Application of diamond - enhanced tungsten carbide composite button bit - a discussion

    金剛石增強型硬質合金復合齒鉆頭在卵礫石層中的應用
  14. The spiral bevel gear ( sbg ) is a critical component of machinery transmission, which not only transfers movement and power, changes transmission direction, but also features high carrying ability, good movement stability and so on. so it is widely used in lots of industrial equipment such as aviation, spaceflight, automobile, precision mechanism and petroleum drilling

    螺旋錐齒輪是重要的機械傳動元件，既傳遞運動和動力，又可改變傳動方向，而且具有承載能力高、運動平穩性好等優點，因而被廣泛應用於航空、航天、汽車、精密機械、石油鉆探等許多工業設備中。
  15. A new type of dinosaur tracks from lower cretaceous of chabu, otog qi, inner mongolia

    內蒙古查布地區下白堊統巨齒龍足印化石
  16. Ganqian cave, located at tubo district, liujiang county, guangxi zhuang autonomous region and unearthed 17 hominid fossil teeth representing at least 13 individuals, is one of the numerous anthropologic cave sites in soudiern china

    位於廣西柳江土博縣境內的?前洞遺址，先後發現代表至少13個不同個體的人牙化石17枚，是我國南方發現古人類單個牙齒較多的一個地點。
  17. Studies of fossil teeth and bones from human species that lived millions of years ago indicate that meat did not play a significant part in diet, and that at least one in twenty met their end in a predator ' s jaws. the findings support the idea that the communication skills and group living that are characteristic of modern homo sapiens evolved as defensive measures against lions, hyenas, crocodiles and eagles

    據泰晤士報2月20日報道，通過對數百萬年前的遠古人類的牙齒及骨骼化石的研究，美國華盛頓大學的羅伯特-瑟斯曼博士發現，肉類食物在遠古人類的日常飲食當中並不佔據重要位置相反，他們中至少有二十分之一的人喪命于食肉動物的口中。
  18. Measuring some 50 feet ( 15 meters ) in length, the bone - crunching predator represents one of the largest marine reptiles ever known, according to a team led by jorn hurum of the natural history museum in oslo, norway

    一頭巨大的史前海洋爬行動物在遙遠的北極島嶼被化石獵人發現，它的身形超過駝背鯨，具有黃瓜般的長度的牙齒
  19. Poke hushed sergeant up and they went looking for stones and bricks and cinderblocks. if they were going to have a little war, they ' d best be armed

    普克命令『警長』閉嘴，他們開始四下尋找石頭、磚塊和煤塊。如果他們要打一場小小的戰斗，那最好先把自己武裝到牙齒。
  20. Above year productive forces 10, 000 tons, variety specification complete, the versatility, mainly applies in the epoxy, fills seals the material, pours the material, the envelope anticipates the electronic electric appliance, the plastic, the coating, the printing ink, the building material, the silica gel, the tooth material, the ceramics, is fireproof, shi cai, the precision casting and so on as well as other chemical domains

    年生產力1萬噸以上，品種規格齊全，用途廣泛，主要應用於環氧、灌封料、澆注料、包封料及電子電器、塑料、塗料、油墨、建築材料、硅橡膠、齒料、陶瓷、耐火、石材、精密鑄造等以及其它化工領域。
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