The lighthouse keeper led his guest up the spiral stairs to the living room on the third floor . 守灯人带领客人顺着螺旋式的梯子爬到塔楼第三层的居室里。
A third layer of transverse cellulose strands is indicated as the microscope stage is rotated . 如将显微镜载物台旋转，便能从纤维横断面中看到第三层胞壁。
The color sensitive emulsion consists of three layers, each of which is sensitized for a different color . 感色乳胶包括三层，每一层对一种不同的颜色感光。
Before receiving a batch of fresh one, the solids in the three stages are successively dumped . 在接受一批新鲜矿石之前，三层反应器中的固体颗粒连续往下落。
Mundry uses the same principle for three layered systems with linear expansion or rotational symmetry . 穆恩德瑞将同一原理应用于具线性延伸或转动对称的三层状系统。
They found out that even a very thin sheet of this three-ply metal was not damaged by corrosion after five years . 他们发现即使是极薄的“三层合金”板泡上五年也不会腐损。
The glass was wrapped in a triple thickness of paper towel with a rubber band around to hold the paper tight against the glass and keep the ice from melting . 酒杯用橡皮筋紧紧绑着三层纸巾，怕冰化了。
They used to go upstairs together on tiptoe, each with a candle, and on the third landing exchange reluctant good-nights . 他俩常常各自擎着蜡烛，蹑着足尖，一同上楼，在第三层楼梯平台上，依依不舍地互道晚安。
Cambridge university biochemistry building was a three storeyed red-brick neo-renaissance structure, plain and unimpressive . 剑桥大学的生物化学馆，是一座三层红砖楼房，新文艺复兴时期式样，朴实无华，也不显眼。
The room was on the third floor, the front windows looking down into the street, where, at night, the lights of grocery stores were shining and children were playing . 房间在三层楼上，前面窗子俯临街道。街上，一到夜晚，杂货店的灯都亮了，小孩子就聚在那里玩。
