Pinhole. A short unwelded area in the weld line extending through the entire pipe so that fluid will leak out through the area very slowly.
针。缝线上位接的、贯穿管子个壁厚的细,可导致流体缓慢漏出。
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The Trieste had five-inch-thick walls, and the 13-tonne pressure sphere hung under a massive tank filled with 22,500 gallons of gasoline for buoyancy.
“的利亚斯特”号壁厚 5 英, 13 吨的耐压球壳悬挂在一个巨型水的下方,水内灌注了 22500 加仑的汽油以产生浮力。
The manner in which the bees build is curious; they always make the first rough wall from ten to twenty times thicker than the excessively thin finished wall of the cell, which will ultimately be left.
蜜的方式很奇怪;他们总是将第一个粗糙的壁做成比最终将留下的极薄的成品壁厚 10 到 20 倍。
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