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IY”H אי״ה. Stands for: Im yirtzeh hashem (אם ירצה השׁם) Pronounced: eem yeer-TZEH hah-SHEM What it means: Hebrew for “if it will be God’s will” or “if it is God’s will.”

Here are some of the most common Hebrew abbreviations you are likely to encounter: Alef-Bet (אָלֶף־בֵּית). The Hebrew alphabet. Adonainu, Morainu, VeRabbeinu; "Our Master, Our Teacher, and Our Rebbe." An honorific title given to scholarly leaders of a Jewish community.

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This video is Part 2 of the Alphabet ABC Phonics Series, covering letters H, I, J, and K. This series goes through each of the letters, starting with A and ending with Z. Each letter is...more.

工字钢的惯性矩怎么求。 首先得知道工字钢的 翼缘长 腹板长 和 板厚 对横轴 工字型钢的翼缘长a 腹板长b 板厚t (t*h*h*h/12)+2* {a*b* [ (t+b)/2] [ (a*b)/2]}用文字说 就是算腹板、翼缘对横轴的惯性矩，腹板的惯性矩是宽乘以高的三次方再除以十二，翼缘是翼缘的面积乘以翼缘中心到横轴的距离的平方. 我们老师很懒，不肯教我们，这是我自己悟的.

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2011年7月15日 · 简言之，工字钢主要承受的是上下方向的力，水平方向比上下方向的承受能力低得多，而h型钢则削弱了上下方向的能力补偿给了水平方向的受力能力。 追问

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其中 回转半径 ix、iy，我是通过 结构设计速查 这款小软件来查得构件截面的回转半径. 查询方法： 型钢表，左边找到所需构件 例如我要算的这个构件是个 等边角钢 L40×3，就找到热轧等边角钢，然后下面找到对应型号角40×3，任意点击一下，右上角就会显示出截面型号对应的参数，找到回转半径，取其最小的回转半径值，像L40×3的最小回转半径值就是7.95. 计算方法： 假如现在我们计算一支撑杆件的长细比，角钢L40×3，计算长度为1.3m， 那么通过查询得其最不利回转半 …