直角鋼尺 的英文怎麼說
中文拼音 [zhíjiǎogāngchǐ]
直角鋼尺
英文
steel square-
Straightedge rule ( square rule, slide gauge, inside and outside micrometer, steel tape, feeler, dial gauge, depth micrometer, wire gage, radius gage, thread pitch gage ) is a kind of common measuring tool
直尺（角尺、游標卡尺、內徑和外徑千分尺、鋼捲尺、塞尺、千分表、深度千分尺、線規、半徑規、螺距規）是一種常用量具。Measuring instruments. steel squares
測量儀器.鋼直角尺Steel sections ; bright square edge equal angles ; dimensions, permissible deviations, weights
型鋼.光亮直角等邊角鋼.尺寸.允許偏差.重量Thus, the conclusion is drawn : when the diffusion coefficient of cf is invariable and the diffusion time is under a certain range, the beginning corrosion time of the steel in the corner of the rectangular section is independent of the size of rectangular section ; ( 4 ) through the numerical value calculation of rectangular section, the law is found of the influence on modifying coefficient of rectangular section of the thickness of protection layer of concrete and diameter of the steel and the thickness of cf on the surface of concrete, based on which practical calculating method of beginning corrosion time of the steel in the corner of rectangular section is set up
從而得到結論：在氯離子擴散系數一定的情況下，在一定時間范圍內，矩形截面邊角區域鋼筋的初始銹蝕時間不依賴于矩形截面的截面尺寸； （ 4 ）通過矩形截面邊角區域鋼筋初始銹蝕時間的計算，分析了保護層厚度、鋼筋直徑、混凝土表面氯離子濃度對修正系數的影響，並在此基礎上建立了氯離子侵蝕下矩形截面邊角區域鋼筋初始銹蝕時間的實用計算方法。分享友人