D. He hurries back to Grandma's house. The storm is too big. Trees are falling down. But it can't stop him.
他匆忙往奶奶家赶。暴风雨太大，树都倒了，但是这并不能阻止他。
The whole thing thus boils down to solving 5c"+d'=54 and c"d'=144, which means that c" is solution of x(54-5x)=144 or 5x2-54x+144=0.
所有的事情都归结于解方程组5c"+d'=54,c"d'=144,即表示c''是x(54-5x)=144或 5x2-54x+144=0的解。
The laser mapping produces 3-d renderings that are accurate down to within three millimeters.
激光测绘的3d渲染可以精确到3毫米以内。
But instead of just putting down ink on paper, they stack up layers of living material to make 3-d shapes.
但和在纸上喷墨不同，他们将层层活性物质累积从而制造一个3d物体。
Do you understand? Call the assistant driller (A. D. ) or derrickmen down to help us.
明白了吗？叫副司钻或井架工下来帮忙。 收藏。
In Washington, D. C., the clock is ticking down to midnight on Friday.
在华盛顿特区，已经快到周五的午夜了。
Over the past two decades, many U. S. schools trimmed down or shuttered business Ph. D. programs, resulting in fewer professors entering the market.
过去二十年间，许多美国学校缩减或是停办了商学博士项目，这使得社会上的教授数量进一步减少。
Virtual R&D teams have been the main organizations of High-tech Enterprises because they optimize R&D resource portfolio, cut down R&D investment cost and risk.
虚拟R&D团队因其资源优化组合、降低R&D成本，规避R&D风险等优势，成为今后高新技术企业的主要组织形式。
But Marc Hamilton, Ph. D., one of Katzmarkzyk's colleagues, suspects it has to do with an enzyme called lipoprotein lipase (LPL), which breaks down fat in the bloodstream and turns it into energy.
但是，凯茨玛德扎克的一个同事，马克·汉密尔顿博士怀疑，与一种叫脂蛋白脂肪酶(LPL)的酶有关，它能分解血管内的脂肪，将之转化为能量。
Chinese policy will drive generic prices down still further, with far-reaching consequences for both R&D players and international generic companies.
中国的政策支持会更进一步降低仿制药的价格，这会给药品研发机构及国际非专利药公司带来深远影响。
But when Peter, Lev and I all sat down Thursday night with our 3-d glasses, annoyed at the thought of the 160-minute running time, I wasn't expecting the immersive entertainment that rolled out.
当彼得、列夫和我在周四晚上带着3 - D眼镜坐在影院，想着这160分钟会怎么度过时，我没有预料到会是这样的身临其境。
All other microscopes producing 3-d images have poor resolution in the up-down direction, the direction between the sample and the microscope's lens, Seibel said.
其他显微镜产生的三维图像在样品和显微镜镜头间的纵向分辨率较差，赛贝尔说。
I "d appreciate it if you could turn it down."
如果你能把音量关小一点的话，我会很感激。
This scene repeated itself many times in China beginning in the third century A. D. , when the Han dynasty collapsed and non-Chinese nomads swept down from the north and breached the Great Wall.
从公元3世纪起，这一幕多次在中国上演，当时汉朝崩溃，非华夏的游牧民族从北方长驱直入，攻破长城。
The roles down the side are Requirements (R), Design (D), Code (C), and Test (T).
在一边的任务是需求（Requirements，R）、设计（Design，D）、编码（Code，C）和测试（Test，T）。
You 'd better lie down for a few days.
你最好卧床休息几天。
Following her longstanding custom, she "d lean down and push my long hair out of the way, then kiss my forehead."
这是妈妈的长期习惯，她总是弯下身来，拨开我的长发，在我的额上一吻。
The design of hardware module includes A/D converter, DDC (Digital Down Converter) and DSP. The design and application of AD6640 and AD6624 are fully discussed in this part.
模块的硬件设计主要包括：A／D转换器、数字下变频器（DDC）以及DSP，详尽讨论了A／D 器件AD6640和DDC 器件AD6624的设计和应用；
When he walked down the street in his high hat, people would say to one another, here goes John Dolittle, M. d.
每当他戴着高高的礼帽出现在街头，人们常常会说：“医学博士约翰•杜立德来了！”
D 'you think you've got me down?
你觉得已经摸透我了吧？
We "d best get to that hotel before they ring down the curtain on the conference."
我们最好能在会议结束之前赶到那家酒店。
We "d best get to that hotel before they ring down the curtain on the conference."
我们最好能在会议结束之前赶到那家酒店。
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