A package with pins distributed over much or all of the bottom surface of the package.
一种封装，插脚分布在封装底部的大部分或全部表面。
So, that means you have to figure out what's the bottom surface of your solid, and what's the top surface of your solid?
这意味着你必须指出,立体图形的底部的曲面，和立体图形的顶部曲面？
The microwave system comprises a set of microwave assemblies arranged on the bottom surface of each partition layer.
所述微波系统包含一组设在各隔层底表面上的微波组件。
A viscose thin film affixed to the bottom surface of the thermo-insulated layer is covered with a split shape paper.
黏覆于该隔温层底面的黏胶薄膜，该黏胶薄膜外部被覆一层离形纸；
The bottom surface of the clamp arm is connected and fixed with the support arm of the tester by a plurality of screw bolts.
夹具臂的底面通过若干个螺栓与试验机支持臂连接固定。
An air outlet of the reaction chamber is arranged at the lower part at the higher side of the bottom surface of the inner line.
反应腔室的出气口设于内衬的底面较高一侧的下方。
Such structural features can be identified by contouring directly on either top or bottom surface of the reservoir with a contour interval of 1-5m.
直接以油层顶面（或底面）为准绘制小等高线间距（1—5米）构造图，可显示出微型构造特征。
Thereafter, the via hole is filled with a core layer, wherein the core layer extends from a bottom surface of the substrate to a top surface thereof.
之后，以核心层填充该介层洞，其中该核心层从该基材的下表面延伸到上表面。
The cover housing also has a mating surface at a base of the cover housing and defined by said walls, such that the mating surface is configured to mate with the bottom surface of the enclosure.
盖壳体还具有在盖壳体的基底处并由所述壁限定的配合表面，从而配合表面被构造为与外壳的底表面配合。
A vacuum adsorption nozzle is stuck on the center of the bottom surface of the metallic film of the flat plate, and a vacuum adsorption pipe is connected with an outlet of a vacuum adsorption device.
平板金属膜底面中央贴设有真空吸附管口，真空吸附管连接真空吸附装置的出口。
The phosphorus at the bottom of the ocean has to somehow make its way back to the surface, to complete the cycle, to begin the cycle all over again.
海底的磷必须找到某种方式回到表面，以完成这个循环，从而重新开始这个循环。
Hydrothermal vents are cracks in the Earth's surface that occur, the ones we are talking about here are found deep at the bottom of the ocean.
深海热泉是地球表面出现的裂缝，我们在这里提到的裂缝是在海底深处发现的。
In that year "a defect at the dam opened the gates, making a toxic layer of hard metals deposited at the bottom of the river come up" to the surface, she said.
就是那年，大坝的门户错误的打开，使得那些原本位于河流底部的有毒重金属层浮到了表面，她继续说道。
The photo is displayed here in its original orientation, though it is more commonly viewed with the lunar surface at the bottom of the photo.
这个图片是以原始拍摄角度展示的，一般是从照片下边的月球表面的方向来看。
The Properties view appears at the bottom of the Workbench, and its layout changes based on the element that's currently selected on the design surface.
Properties视图出现在Workbench的底部，其布局根据您当前在设计图面中所选择的元素而发生变化。
If they hit the bottom surface before passing through, they are reflected off and absorbed at the top - and thus are not detected at the other end of the plates.
如果没有穿过之前，中子就掉落到底板，那么它们会反弹到顶板，并被吸收——这样就不会在发射另一端检测到。
Winds or storms can move nutrients from the bottom of the ocean to the surface. Nobody knows yet how much of a difference the whales really make.
暴风骤雨亦可将海底养分移动到海面，鲸鱼的工作与之区别何在，尚未为人所知。
To accurately control the amount of force applied to the bit, the driller carefully monitors the surface weight measured while the bit is just off the bottom of the wellbore.
为准确地控制施加于钻头上的力的大小，当钻头刚刚离开井底时司钻要仔细监测地表测得的重量。
Dead zones form when big blooms of phytoplankton at the surface trigger large quantities of organic matter, which then sink to the bottom.
当水面上大量爆发的浮游植物触发产生大量的有机物质，而这些有机物质随后下沉到水底的时候，死亡带就形成了。
What is the average tubing temperature if the surface temperature of the tubing string is 700f and the temperature at the bottom is 2100f?
如果油管柱的井口温度是华氏700f，井底温度是2100f，它的平均温度是多少？
These reactions may occur in the water body on the surfaces of plants. within the litter accumulation at the wetland surface and on the bottom or within the root zone of the system.
这些作用发生在水体中、植物表面、湿地表面和底部的垃圾积累物中，或发生在根区系统而使污染物得以去除。
The purpose and the principle of the slab bottom surface cleaning technology of the Handan Steel CSP plant were introduced.
本文介绍了邯钢CSP生产线连铸坯下表面清理技术的目的、原理、效果和发展前景。
Sea surface and bottom constituted sound propagation environment of the neritic acoustic duct field.
海面与海底构成了声源浅海海域波导场的声传播环境。
Sea surface and bottom constituted sound propagation environment of the neritic acoustic duct field.
海面与海底构成了声源浅海海域波导场的声传播环境。
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