我们都知道如今大部分渲染器是后向的不是前向的。从摄影机发射光线，命中物体后采样。
As we know, almost the all ray-tracers are based on Backward Ray-Tracing, cast rays from camera, sample the lights, not emit photon from light sources.
作者还观察到中脊上皮细胞前后向的迁移，这种机制可能在后部腭板的融合中起到重要作用。
We also observed an anteroposterior migration of medial edge epithelial cells, which may play an important role in posterior palate fusion.
如果你想了解得更清楚，最好的办法就是上公共汽车后向司机询问。
If you want further information the best thing to do is have a word with the driver as you get on the bus.
流过鸟翅膀的空气在翼尖后向上流动，这种现象被称为上升流。
The air flowing over a bird's wings curls upwards behind the wingtips, a phenomenon known as upwash.
河水说：“你先跑到新娘那儿，然后向她要一根丝质的绳子，让河水停下来。”
The river said, "Run first to the bride, and ask her for a silken cord to draw up the water."
船长凭着出色的航海技术，把船驶出了冰层然后向北前行。
With a remarkable piece of seamanship, the captain steered the ship out of the ice and turned north.
大多数试图解释热木星存在的设想是，它在更远的地方形成，然后向内迁移。
Most attempts to explain a hot Jupiter's existence envision it forming farther away, then migrating inward.
我很确定其他的学生在中心的水族馆实习，上海洋生物学课，然后向游客讲解各种各样的展览品。
I am pretty sure those other students are doing the internship at the center's aquarium, taking classes in marine biology and then teaching visitors about the various displays.
在瑞士，如果你只是早于红绿灯行动，你后面的司机很可能会记下你的号码，然后向警察报案。
In Switzerland, if you were simply to anticipate a traffic light, the chances are that the motorist behind you would take your number and report you to the police.
在有雾霾的天气里，机器会吸进自行车前面的空气，然后向骑自行车的人的脸上吹出一股清新的空气。
In smoggy weather, the machine would breathe in the air in front of the bike and blow out a stream of clean air toward the biker's face.
维京人随后向南航行，并完成了他们的第二次登陆。
The Vikings then sailed south and made their second landing.
找出那些东西是什么，仔细考虑你想成为什么样的人，然后向周围的人展示你的诚实。
Find out what those things are, think hard about who you want to be, and then show yourself honest to the people around you.
他对这个国家里所有的年轻人说：“我给你们每个人一粒种子，把它种下，一年后向我展示你们种的花，我会从你们当中选出一位新国王。”
He told all the young people in the country, "I'll give each of you a seed. Plant it and show me your flower in one year, and I'll choose a new king from you."
当我们盘旋后向西方的大陆飞去时，我能看到纽芬兰非官方旗帜依然在港口上空飘扬。
As we circle to head westward toward the mainland, I can see the unofficial flag of Newfoundland still flying over the harbour.
它接收并处理设备服务和任务管理请求，然后向发送这些请求的发起者返回响应。
It receives device service and task management requests for processing and sends responses back to the initiator that transmitted these requests.
我发现阻止抽筋最好的办法就是站起来，保持脚平放，然后向后推你的踝关节，向前推你的膝关节。
The best way I found to stop the cramp is to stand up keep your foot flat then push your ankle back and your knee forward.
孩子们只应付当时当地的情绪，然后向前走。
Children seem to deal with the feelings then and there, then move on.
我发现阻止抽筋最好的办法就是站起来，保持脚平放，然后向后推你的踝关节，向前推你的膝关节。
The best way I found to stop the cramp is to stand up, keep your foot flat, then push your ankle back and your knee forward.
研究者们现在正着手着让他们设备达到最优化，来看看他们的后向激光的强度还能提高多少。
The researchers now plan to optimize their set-up to see how much higher than can raise the gain of their backward laser.
它包含许多不再使用但用来后向兼容的窗格。
It contains many panes not in use but kept for backward compatibility.
这个新功能允许您使用正在进行的实例中的相同数据来启动新的流程实例，然后向前跳转到正确的执行点。
This new capability would allow you to start a new process instance using the same data as the in-flight instance, then jump forward to the right spot.
敏捷开发需要大量的训练来测试第一个开发或者完成足够的工作，然后向前推进并完成其他的工作，并且始终关注高价值的活动。
It requires great discipline to do test first development or to do just enough work and then to move on and do something else, and to stay focused on high-value activities.
直走下那边的台阶，然后向着指示牌方向走。
特定的玩家在网上组合在一起成为一个宗派，然后向游戏的聚集站支付一笔订购费以租用一台专用的服务器来使用。
Dedicated players group socially together online in clans and then pay a subscription fee to an aggregator to host a dedicated server for their use.
在OTMPS场景中，分析师可能定义一个KPI，然后向相应的任务或者流程添加观测点。
In the OTMPS scenario the analyst might define a KPI and add observation points to the corresponding task or process.
这位妇女对那些有勇气的人给予感激，并在最后向我的朋友说了最为关键的话语，她说：“每个人都会经历困难。
The woman spoke of gratitude for those who had courage, and at the end of what was essentially a monologue the woman said to my friend: “Everybody goes through difficulties.
还可以找到对后向堵塞通知(BCN)的支持，这以消息的方式加紧控制循环，从而改进了堵塞管理。
You'll also find support for backward congestion notification (BCN), which improves congestion management by actively tightening the control loop through messaging.
他们说他们的后向激光可以，例如，在气体输运管道破裂的情况下使探测大气中的甲烷信号变得更容易。
They say that their backward laser would, for example, make it much easier to scan the atmosphere for signs of methane in the case of a ruptured gas pipe.
他们说他们的后向激光可以，例如，在气体输运管道破裂的情况下使探测大气中的甲烷信号变得更容易。
They say that their backward laser would, for example, make it much easier to scan the atmosphere for signs of methane in the case of a ruptured gas pipe.
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