交替

The non-continuously moving state lies on the vehicle's structural characteristic. This air-cushion vehicle has two platforms, which are connected by two hydraulic cylinders. When it moves, one platform is fixed on ground as the base platform, and takes the other one as moving platform, then the vehicle can go forward by alternate movement of these two platforms. So the push-pull air-cushion vehicle is a self-propelled vehicle.

它的非连续运动形态取决于其结构特点，该气垫车由两个对称的子平台组成，中间通过液压油缸相铰接，运动时总是固定其中一个平台作为基础平台，而将另一个平台作为运动平台，基础平台通过液压缸推出或拉进运动平台交替动作，实现运动，因此推拉式气垫车是一种自走式气垫车。

Cannon, the alarm reaction involves , among other changes ,increased heart rate and blood pressure, producing an increased supply of oxygen to the muscles ,changes to the digestive system, rapid digestion of sugars for increased energy ,and alterations in the composition of the blood such that clotting occurs more quickly.

经由 W.Cannon 的系统研究，警戒反应包括，心率加快、血液升高、血糖消化加快已提供更多能量，血液成分的交替变化比如血凝固更快更多。

Though Mr Galston soon had to go off to war himself, and then got sidetracked on the effort to find a new plant substitute for rubber, it did not occur to him that his discovery had military uses. It might, perhaps, be helpful to farmers. He was a botanist, who once spent a happy year in Stockholm isolating catalase from spinach leaves, and who patiently observed "rhythmic opening and closing in the dark in the plant Albizzia". He believed in the inherent beauty and usefulness of science.

尽管很快 Mr Galston 就上了战场，但之后他偏离军事，转而努力寻找取代橡胶的新植物，他从未想过他的发现有着军事用途，他的发现可能，或许对农民有帮助吧，他是一个植物学家，在斯德哥尔摩从菠菜叶中提取接触酵素，渡过了愉快的一年，还耐心的观察"合欢花在明暗交替中有节奏的开合"他信仰科学内在的美和效用。

In the light of the complex, high-level and non-linear feature of the mathematical model which describe the transport of the coalbed methane, this paper study the fully-implicit solving method of the mathematical model in detail. Based on the complexity of the algebraic equations which are formed eventually, according to the alternating direction implicit difference pattern, this paper use the iterative method and the fully main element Gauss-Jordan eliminating method to solve equations, which is to use the iterative method to determine coefficient matrix and use the fully main element Gauss-Jordan method to solve th linear algebraic equation group, at the same time of studying the solving method of the mathematical model, according to the devising requirement of FORTRAN77 program structure, this paper draw up computer program and form the corresponding computer model, and verify the validity and reliability of the model in theory by operating the model.

重点研究了模型内、外边界及有关参数的处理，针对描述煤层甲烷运移的数学模型是一个复杂、高阶非线性数学模型的特点，详细研究了模型的全隐式求解方法，根据最后形成的代数方程组的复杂性，按交替方向隐式差分格式，采用迭代与全选主元高斯约当消去法相结合的方法求解方程：即确定系数矩阵采用迭代法，求解线性方程组时采用全选主元高斯约当消去法，在研究模型解法的同时按FORTRAN结构化程序设计的要求，编制计算机程序，形成相应的CBMRS计算机模型，并通过模型的运行从理论上证明了模型的正确性与可靠性。

The second part is the folding of apo cyt c induced by the alternating copolymers of maleic acid and alkene.

论文工作的第二部分研究了马来酸—烯烃交替共聚物对脱辅基细胞色素c结构转换的影响。

Alternate angles, takes, and entire scenes are cut in the interests of propelling the story forward.

有许多交替的角度，拍摄以及完整的场景为了故事发展的需要而被剪掉了。

If your going to try the cross-hatch style of quick shading, might I suggest that you further alternate and think about your angles a bit more (going 90 degress and making a checkboard pattern is kind of flat to me), it can be pretty powerful and descriptive if you stroke in the direction the form flows...might need to make your lines closer together so its more consistent.

如果你打算用交叉的平行线画出阴影，我建议你更多的交替线条而且角度多一点（90度递减还有画的格子图案对我来说跟平的一样），如果你每一笔的描绘都形成流动性方向，它可能会变的更有力度和描绘性，也许会让你的线条更紧密而且更连贯。

In 1979, men's names were introduced and they alternate with the women's names.

1979年，男人的名字，他们介绍了与妇女的名字交替。

If you enjoy an intense color, such as sunshine yellow, alternate it with white.

如果你喜欢的黄色，如阳光，强烈的颜色，它与白色交替。

Success stories alternate with news of project failures.

成功的故事与项目失败的新闻在交替出现。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失