air grit 中文意思是什麼
air grit
解釋
通風格柵-
The test obsvervation include air temperature, ground temperature, foundation moisture, freeze depth, freeze capicity, freeze residual capicity, groundwater table and shape transform of canal lining, etc. throught systemic observation, analysis of impact about each factor on fundation freeze capicity, evaluate effect on anti freeze of various canal lining, comparison on technology and ecnomic of different method, a kind of main canal lining format is been recommended to engineering practice with siutable to ningxia local feature, fufilling the need of main canal safey i application, economic and practical, that is using polystyrene plate laying under concrete slate and grit taking replace of filling layer and optimizing design
試驗觀測內容包括氣溫、地溫、基土含水量、凍深、凍脹量、凍脹剩餘量、地下水位和砌體外觀變化等項目。通過系統的觀測，分析各因素對基土凍脹量的影響，評價各種襯砌型式的防凍西安理工大學工程碩士專業學位論文脹效果，並進行技術和經濟綜合分析比較，推薦出了適合我區特點、滿足乾渠安全運行、經濟實用、防凍脹效果好的乾渠防滲襯砌型式，即混凝土板下鋪設聚苯乙烯板和砂礫石換填層結構型式，加以優化設計，用於工程實踐。 -
The total area of the corporation covers about 200 chinese acres and the length of coastline is about 1, 140 meters, the auxiliary facilities have taken shape the main facility and the equipment include the 30, 000 dwt dry dock which is 192 meters long by 40 meters wide the gate width 32 meters and 10 meters deep, is to date the biggest dry dock in fujian province ; one fitting wharf length 65 meters, width 17 meters ; 16 tons portal crane 1 set, 16 tons gantry crane 1 set, mobile cranes 50t1 25t1 12t2 8t4 and other necessary transportation, coatings, the precision work equipment supplying air 120 m min, spraying grit more than 4, 000 m day, renews the steel plate 12 15 t day we can finish repairing all kinds of ships under 40, 000 dwt within 7 to 10 days our corporation obtains the first - class dockyard to repair and build steel - made ships lisence in 2001, passed the national environmental protection appraisal in august 2002, was designated shipbuilding in fujian for maintaining foreign ships in octobet 2002, the dry dock, passage channel, the turning area, fitting wharf are passed by passage safety appraisal in march, 2003
主要設施和設備有： 3萬噸級干船塢一座長192米寬40米塢門凈寬32米深10米是福建省目前最大的干船塢舾裝碼頭一座長65米寬17米16噸門座起重機1臺10噸門吊1臺汽車吊8臺50噸1臺25噸1臺12噸2臺8噸4臺以及與其相配套的運輸噴塗精加工設備。每分種供氣120立方米，日噴砂面積4000多平方米，日換鋼板15 20噸。一般修船工期為7 10天。 -
Grit, dirt or any foreign matter accumulated in the pipe can hinder efficient valve operation and seriously damage vital valve parts. thoroughly clean pipe internally with air or steam
硬渣、污物或任何外部物質在管道內積累都可能妨礙閥門的工作效率並嚴重損壞閥門的關鍵部件。必須用空氣或蒸氣對管道內部進行徹底清洗。 -
Before shop primer is applied, dust, sand residue, crushed steel shot or grit and all other contaminants must be removed from the surface using a vacuum cleaner, air blower, etc
當車間底漆塗裝之前，應用真空清潔器、鼓風裝置除去表面的灰塵、殘砂、碎鋼粒以及其他污染物。
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