counting down 中文意思是什麼

counting down 解釋
脈沖頻率分除法
  • counting : n. 計算。 counting house 〈英國〉＝counting room 〈美國〉賬房；會計室；事務室。 counting overseer [witness] （投票的）唱票監察人。
  • down : adv （downmost）1 向下（面）；下，降；在下（面）。 come down 下來；下（樓）來；（雨等）落下。 The...
  1. Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method

    其主要功能是：當車輛滾翻時， rops能刺入未凍土壤而阻止車輛的進一步滾翻，降低滾翻的車輛對系著安全帶司機軋傷的可能性；保證rops在碰撞和沖擊變形不大的地面（如凍土、混疑土上、巖石）時，能具有相當大的抗連續沖擊能力；當車輛已經處于顛覆狀態時，已經變形的rops應能支撐住整車。落物保護裝置（簡稱fops ） ，其構件的布置方式要能遮蔽墜落的物體（如，樹木、巖石等） ，以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定，對大型推土機傾翻和落物保護裝置進行研究，在理論分析的基礎上，通過建立rops fops的力學分析模型，推導彈性、彈塑性階段rops fops變形的計算公式，建立一套可行的rops fops的非線性有限元分析計算方法。
  2. The purpose of a compliance audit is to determine whether the function point counts follow specific procedures and guidelines set down by the ifpug counting practices committee

    兼容審計的目的是審核功能點估算是否遵守ifpug估算實踐委員會制定的每個程序和操作規程。
  3. But the first step he made wrung such a hideous creak from the crazy floor that he sank down almost dead with fright. he never made a second attempt. the boys lay there counting the dragging moments till it seemed to them that time must be done and eternity growing gray ; and then they were grateful to note that at last the sun was setting

    可他一邁步，那搖搖晃晃的破樓板就吱吱作響，嚇得他立即趴下，像死了一樣，他不敢再動一下，兩個孩子躺在那裡一分一秒地數著時間，似有度日如年之感，最後他倆覺得日子終于熬到了頭，看到日落西山，心中充滿感激之情。
  4. U. s. biologists were counting on an underwater recording of humpback whale songs to lure two injured whales back down the sacramento river and toward the ocean

    美國生物學家利用座頭鯨聲音的水下錄音，試圖引導兩只受傷鯨魚掉頭離開沙加緬度河回到海洋去。
  5. Beijing olympic games count down is only one - year left, and each item preparation woke for chinese teams are also counting down

    北京奧運會倒計時將邁過1周年門坎，中國隊各個項目的備戰也開始進入讀秒階段。
  6. The commander started counting down

    指揮者開始倒計時。
  7. I am counting on you to keep your word. don ' t let me down

    我指望著你信守諾言呢。別讓我失望。
  8. That is actually your life clock ticking, counting down the moments you have left

    那其實就是你的生命之鐘在嘀嗒作響，細數著餘下的時刻。
  9. Instead, mourinho is counting down the days until john terry and khalid boulahrouz return from back and knee injuries respectively, with carvalho expected to have recovered from his illness in time to feature at stamford bridge against wycombe wanderers in the carling cup tomorrow

    穆里尼奧現在還在盼著受傷的特里和博拉魯茲歸隊，卡瓦略被認為可以在明天聯賽杯對陣維康比的比賽中復出。
  10. A new method of absolute calibration of photodetector sensitivity based on spontaneous parametric down - conversion ( spdc ) biphoton field is described. the process of spdc is studied theoretically. the single photon detection probability and two - photon coincidence probability are derived and the calibration principle for photodetectors is explained. an experimental system has been set up. the sensitivity of a photon - counting photomultiplier tube was measured, and the results were compared with those obtained using conventional method

    討論了一種基於自發參量下轉換雙光子場絕對校準光電探測器靈敏度的新方法，著重推導了對自發參量下轉換過程中產生的單光子的探測概率和雙光子的符合速率，從而闡明了絕對測量光電探測器量子效率的原理.基於這一方法對光子計數型光電倍增管的響應靈敏度進行了測量，並將實驗結果與常規方法測得的結果進行了比較
  11. Not knowing when will it start counting down and explode

    只是，我不曉得幾時會爆發。
  12. Road traffic counting down display unit

    道路交通信號倒計時顯示器
  13. We have something counting down over here

    這里有東西在倒計時
  14. The start timer displays the seconds counting down to zero ( the starting time ), sounds an audible electronic warning ten seconds before zero, then once every second from five seconds before down to zero, and once again five seconds after zero

    起始計時器顯示到零的倒計時（從起始算起） ，在還有10秒時發出可聽見的電子警告聲，從剩下5秒起每秒響一次，零秒后5秒又響一次。
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