arc lower 中文意思是什麼

arc lower 解釋
下弧形
  • arc : A. R. C. ＝ American Red Cross 美國紅十字會。n. 1. 弧；弓形，拱（洞）。2. 電弧，弧光。
  • lower : adj 〈low 的比較級〉1 較低的。2 下級的，低級的。 lower animals 下等動物。3 南部的。 in lower Manh...
  1. 4. it is the first time that eclogite conglomerates are discovered in maotangchan and fenghuangtai formations. this suggests that ultra - high pressure metamorphic rocks in the dabie orogenic belt exhumed to the earth ' s surface in lower cretaceous. the geochemistry data indicates that the protoliths of the eclogite gravels formed in a structure setting of volcanic arc

    首次在毛坦廠組、鳳凰臺組中發現了榴輝巖礫石，這一發現表明大別造山帶超高壓變質巖在早白堊世已經折返到地表，而且地球化學研究表明這些榴輝巖礫石的原巖形成於巖漿島弧構造背景。
  2. 2. 6 2. 7ga, these granitoids are most likely to be derived from the partial melting of hybrids both 2. 6ga metavolcanic materials in archean wutaishan magmatic arc and older continent crustal materials under lower than 1. 2gpa. petrological and geochemical characteristics of wangjiahui granitoid intrusion suggest that is probably fored under post - collisional tectonic background

    2 . 1ga在- 3 . 82 - 2 . 80范圍，表明王家會古元古代花崗巖最有可能形成於大約2 . 6ga五臺山大洋島弧火山巖物質和更老的陸殼物質在
  3. In addition, there are four types of lower right corner of special skills to adjust the flight arc, can use reasonable success

    另外，右下角還有4種特殊技巧來調整飛行弧度，合理利用可以事半功倍。
  4. The problem about neutral - point - grounding mode is an all - around technical problem which associated with not only power system reliability ， insulation coordination ， electromagnetic interference ， but assault safety 。 in china ， the neutral grounding modes of the 10kv net involved of none grounding, grounding by arc suppressing coils, resistance grounding or reactance grounding in the past 。 with the development of civic power network ， low resistance grounding mode was used to restrain the over voltage, particularly in guangzhou, shanghai ， beijing ， and zhuhai etc. it was reported that the over - voltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way 。 at substations in guangzhou and shanghai it was found that the low resistance grounding mode is successful 。 but in some areas ， such as zhuhai ， substations grounding with low resistance revealed some problems ， including power supply reliability rapidly dropping ， transmitting line often tripping ； and person safety being threatened 。 so interiorly the grounding mode selection of the 10kv network was disputed, which mainly focused on the fault form of 10kv net grounding, the apply area of suppressing arcing coil grounding mode, power supply reliability level of the two modes, person safety, communication interfere and the workload of maintenance

    爭議點主要是在10kv電網接地故障的形式、消弧線圈接地的應用范圍、兩種運行方式供電可靠性的高低、人身安全、通訊干擾和運行維護工作量等諸多方面。 11 17本論文就是針對以電纜為主的城區10kv電網中性點接地方式的選擇問題進行研究。論文首先對10kv電網的中性點運行各種方式進行分析，比較各方式的特點，然後以重慶儲奇門變電站10kv電網的實際參數來建立數值計算模型，在考慮了電網接地電容電流變化、中性點電阻取值大小、接地點接地電阻值變化等多種影響因素的情況下，對中性點經消弧線圈接地和經小電阻接地方式下電網的過電壓水平和接地點短路電流大小進行了數值計算，其計算結果與電科院所作現場試驗進行了比較。
  5. By testing the arc shield voltage in different vacuum degree, it proves that the arc shield voltage method will be an effective online testing method when the vacuum degree is or lower than lpa, but the method will be no use when the vacuum degree is higher than 10 - 2pa

    通過對不同真空度下的真空滅弧室屏蔽罩電位的進行了測試，證實了用屏蔽罩電位法作為真空度在線監測的手段，對于真空度在1pa數量級上是可行的，但當真空度高於10 ~ （ - 2 ） pa時，此方法是不可行的。
  6. Series of high pressure thermocouples thermalresistances and thermowells, the thermocouple take the form of spring - loaded, of which protective tube and flange are forged of special alloy, as well the thermowell are formed with bar stock drilled. more further, theconnecting between thermowell and flange can be compressed with tapered thread and the groove at the lower end of flange can be welded with argon arc. these thermocouples are usually used in high equipments of hydrogen cracking device, cracker and vaporizer etc for pressure - resistant in over 30 mpa, operating temperature from 0 up to 800

    系列高壓熱電偶阻及套管，熱電偶採用彈簧壓著式，保護套管和法蘭選用特殊合金材料鍛造，套管採用棒料整體鉆孔加工而成，與法蘭連接處以錐管螺紋配合併與法蘭下端渠槽處用氬弧焊接，耐壓30mpa ，使用溫度0800 ，可長期使用在加氫裂化裝置裂解裝置，氣化爐等高壓設備中。
  7. After designing oil ditches on the surface of its arc - block, increase friction factor and make sure self - lock which solves above problem. do qualitative analysis to lower pair and one - way overrunning clutch and inner star - wheel - roller overrunning clutch by using self - made lever loader. the experiment shows : on the same condition, the deformation of new overrunning clutch ’ s surface contact with lower pair is smaller than the deformation of roller overrunning clutch ’ s line contact with higher pair and new overrunning clutch ’ s skid angle is smaller

    對低副單向超越離合器的部件進行了加工製造，在超越離合器弧塊表面創新設計加工排油溝，增大摩擦系數，保證實現自鎖，解決了很多離合器工作過程中容易出現無法自鎖的問題;對低副單向超越離合器和內星輪滾柱超越離合器用自製杠桿加載器做了定性分析，實驗表明:相同條件下，新型離合器低副面接觸比滾柱離合器高副線接觸變形小、溜滑角小。
  8. The damage and the decrement of light transmittance of ion exchange strengthened cover glass arc much lower than that of as - received one after ion beam bombardment, which demonstrates that ion exchanged solar cell cover glass has better resistance to ion beam bombardment

    結果表明，經離子交換增強后的蓋片玻璃，彎曲強度最大可以提高約4倍；且在受到離子束轟擊時的損傷以及透光率下降的程度都小於原片玻璃，說明化學鋼化玻璃具有較好的耐離子束轟擊的能力。
  9. 1 ) in the solutions with high hno3 concentration, the etching is similar to chemical polishing which produces flat surface. 9. 3 % surface reflectance is obtained through stopping etching when the blue color is appearing on the surface, which is lower than 15. 7 % reflectance of sio2 layer arc

    這對于提高太陽電池的效率是極有益的。 （ 2 ）反射特性、形貌和腐蝕液的關系1 ）在高hno _ 3的溶液中，近似化學拋光，制備的樣品表面相對光滑。
  10. Lower your right hand, then raise it up to the side of your right ear and, with the body turning to 3 oclock, thrust it down in front of your body, with the palm facing left and the fingers pointing down. make an arc with your left hand forward and down to the side of your left hip, palm facing down and fingers pointing forward, look down

    海底針：重心前移，右腳向前跟半步，重心落於右腳上，身體向右轉，左手劃一個平圓，右手在身體右側劃一個圓，沿耳際向前下插掌，同時左腳向前上半步，成虛步，眼看前下方。
  11. In view of the external form of the roof construction, it was decided that the variant steel arched girder should be composed of a higher straddle and a lower straddle, with a stump welded between the two straddles. the straddles are two arc - shaped roofs of different curve rates, and each of the straddles is made up of segments of various curve rates

    根據實際工程屋蓋建築的外形，確定變異鋼拱架分高跨和低跨部分，中間採用短柱焊接成一整體，高跨和低跨由兩個不同曲率的弧組成，且每一跨又有多個曲率。
  12. The results indicate that arc melting is a good method to produce nb - si system intermetallics due to its simpler technics, lower cost and compact products. however, powder metallurgy is found to be not suitable to produce the nb - si system intermetallics due to its coarse and loose products resulting from the poor molding property of nb and si mixed powders. optical floating zone technology, which is used to fabricate nb - si intermetallic composites for the first time, is also found to be a good way to produce nb - si system intermetallics because of its compact products and good property despite of its relatively high cost

    結果表明，電弧熔煉方法制備得到的nb - si系金屬間化合物比較緻密，且制備工藝簡單，經濟實用，是一種合適的nb - si系金屬間化合物制備方法；由於nb 、 si元素粉末的成型性很差，用粉末冶金方法（熱壓燒結和冷等靜壓）制備的nb - si系金屬間化合物表面粗糙、緻密度低，且成本較高，不宜用於制備nb - si系金屬間化合物；首次用光學懸浮單晶生長技術制備的nb - si系金屬間化合物復合材料緻密度很高，盡管成本稍高，但由於性能最佳，也是一種合適的nb - si系金屬間化合物制備方法。
  13. And the reflectance in the short wavelength range is lower than that of a double layer arc, which is beneficial for improving the solar cell efficiency. ( 2 ) reflectance characteristics and morphology, the etching solutions

    可以和具有tio _ 2 - mgf _ 2雙層減反射膜的常規堿腐蝕的結果相比擬，且在能量較高的短波范圍內具有更好的減反射特性。
  14. The paper designs a lower pair and one - way overrunning clutch. because its arc - block, outer ring, roller, slide - block and output shaft contact by lower pairs, they overcome higher pairs ’ shortcomings such as wearing easily, bad resistance to impact, bad bearing capacity and so on

    本文創新設計了一種低副單向超越離合器，其弧塊與外環，弧塊與滾柱，滾柱與滑塊以及滑塊與輸出軸之間都是以低副聯接，克服了高副易磨損、耐沖擊性差，承載力低等缺點。
  15. The geochemical data of the benzilan and pantiange volcanic rocks from the jinshajiang zone yielded characteristics similar to those of island - arc volcanic rocks : intensive enrichment in lile and different depletion in hfse, nb, ta, ti, p and zr, hf. their lower e nd ( t ) values ( - 4. 03 - - 11. 29 ) indicate that they are derived from an emu mantle source or a mixing source between dm and emu respectively, but which are affected violently by subduction materials

    同位素研究顯示，它們具有較低的_ （ nd ） （ t ）值（ - 4 . 03 - 11 . 29 ） ，表明它們分別來源於富集地幔emii以及虧損地幔dm和emii兩元混合的源區，兩地的火山巖源區都受到了俯沖帶物質的強烈影響。
  16. The lower paleozoic strata in the south kunlun massif are kulafuhe group of cambbrian - ordovician. they consists of metamorphic detrital rocks, limestone, magnetite - bearing basalt, quartzite ( meta - silicalite ), which suggests that they might form at active continent margin. the geochemical characteristics of volcanic and detrital rocks do indicate that they might form at an active marginal environment such as island arc etc. associated with the qimanyuter ophiolite suit, there are lots of early paleozoic granitic plutons

    在昆南地塊上的早古生代地層為寒武?奧陶系庫拉甫河巖群，由變碎屑巖、灰巖、含磁鐵礦玄武巖、石英巖（變硅質巖）等組成，顯示其比昆北地塊有較大的活動性，火山巖和碎屑巖的巖石地球化學特徵也反映為島弧及活動邊緣環境。
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