16. The phloems rage alternate with xylems. There are mucus cells and crystal cells in cortex of root. And vascular bundles scatter in stem.
鸭跖草的木质部为六原型，韧皮部与木质部相同排列，根皮层中分布有粘液细胞和晶体细胞。
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17. Sound-proofing applied to the ceilings and walls or smooth absorbent surfaces alternate with raised surfaces for rendering optimal sound.
天花和墙面的不同位置分别使用隔音或吸音材料，以实现最佳的声音效果。
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18. Editors note: This column will alternatewith each issue between the series on concepts behind BPEL4WS, and that on how to technically implement them.
19. These double height spaces alternatewith unenclosed areas and rise around a vertical core, their alignment shifting toward different views at every floor.
这些双高度空间候补与不可抗力造成周围地区和一个垂直的核心，使之转向不同的观点在每一个发言。
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20. The fronts of the classrooms, with their salient surrounding frames, have floor-to-ceiling and double-pane Windows that alternate with vertical weatherboarding.
教室的前方，有框架环绕，通高双层窗户与水平挡雨板交替。
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21. By using the structural elements for the radian of simple construction technique gives a clever space, black and white alternate with visual material to a prominent.
以弧度为构造元素，利用简单的构造手法赋予空间一种灵动，黑白材质相间给予视觉上一种凸显。
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22. My leg is fine and gangling, bestrewed the decorative pattern of black and white alternatewith, a lot of spiders regard me as is the gnat that comes from foreign land.
我的腿纤细瘦长，布满了黑白相间的花纹，很多蜘蛛都把我当成是来自异乡的小昆虫。
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23. The Arcon is a recently developed combination of a top -blown oxygen converter and a DC arc furnace with a single electrode, which can alternatewith the top oxygen lance.
电转炉是新近开发的将氧气顶吹转炉与直流电弧炉相结合的技术，其电极与顶吹氧枪可交替使用。
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24. To arrange parts of one sequence of things or events so that they alternate with parts of one or more other sequences of the same nature and so that each sequence retains its identity.
25. Some people, however, never develop severe mania but instead experience milder episodes of hypomania that alternate with depression; this form of the illness is called bipolar II disorder.
但是，一些人从未发展成严重的躁狂，而是处在较温和的轻躁期。这种形式，我们称为双相ii型。
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26. The original stone is black, colored limestone, thin strip with alternating layers of white, gray stripe dolomite rock, black and white alternate with, commonly known as "dao" black and white.
原石是黑色、灰黑色薄层条带灰岩，与白色、灰白色条带白云岩形成互层的岩石，黑白相间，俗称“黑白道”。
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27. The original stone is black, colored limestone, thin strip with alternating layers of white, gray stripe dolomite rock, black and white alternate with, commonly known as "dao" black and white.
