On all fours, he scrambled to the next ledge and then turned and looked back; the man was still standing there . 他手脚并用，磕磕绊绊地爬向另一堵墙，随后转身回头望去；那人依旧站在那里。
As the turtle swims across the oceanarium , the first porpoise swoops down from above and butts his shell with his belly . 当海龟游过水族馆时，第一只海豚从上方扑下去，并用腹部撞击龟壳。
He used an oscillating circuit containing a spark gap as a generator, and a similar circuit as a detector . 他利用一个振荡电路，其中包括一个电花隙作为发生器，并用另一个相似的电路作为探测器。
To see what error was engendered in the process, we now allow ni to differ from ne and use the linearized poisson equation . 为了研究在这个过程中引起了多少误差，我们让ni与ne不相同，并用线性化的泊松方程。
Desalination is carried out by simply lowering into the ocean a long, hollow pipe capped at the lower end by a semipermeable membrane . 用一根长空心尼龙管插入海水里，并用半透膜封住较低的一端来进行海水淡化。
Buffaloes provided the indians with a way of life--the skin was used to make tents and clothes and bones were shaped into tools . 野牛为印第安人提供了一种生活方式，他们用牛皮做成帐幕和衣服并用牛骨来做成各种工具。
Lindemann could decipher the signals from the experts on the far horizons and explain to me in lucid, homely terms what the issues were . 林德曼能够辩认专家们从遥远的地方发来的信号，并用简明的通俗话给我解释是什么问题。
Barring a few exceptions, it is difficult to obtain large amounts of material of the free nuclear endosperm of plants for routine biochemical analysis . 除了个别例外，要获得大量的植物游离胚孔材料，并用于日常的生化分析是困难的。
it is convenient to stack the various｛p｝vectors side by side and to express all the analyses by a single matrix equation k｛u｝=｛p｝. 将各个P向量并排地列在一起，并用单个矩阵方程KUP来表示全部分析是方便的。
Her spinning wheel and the milk of a cow which she had purchased with the little money she had with her sufficed for the scanty subsistence of herself and her growing son . 她纺纱织布，并用仅有的一点钱买来一头奶牛，以此来维持母子俩的清苦生活。
