不必

This machine composed by electric stand single facer and rotary cutter, using our paper could produced all kinds of the single corrugated cardboard, don't need to hea drying the cardboards, and used with the gluing machine and pasting machine could produce the three ply or upper corrugated cardboard, have the good character for configuration reasonable, technic advance, best quality cardboard and high efficiency, lower labor intension operation convenience etc, it is the best equipment for producing carton.

本机由卷筒电动支架、单面瓦楞纸板成型机、旋转式剪纸机组成，使用卷筒纸和薯类或玉米淀粉粘合剂，可连续生产并剪切所需规格的单面瓦楞纸板，生产的纸板不必再烘干，同胶水机或贴面机配合使用，可生产三层以上的瓦楞纸板，具有结构合理、工艺先进、生产纸板质量好、效率高、劳动强度低、操作方便等特点，是生产纸箱的理想设备。

A writer of history stories for children should read the material more carefully and better familiarize oneself with ancient culture.

作家不必身兼历史学家，但写作前应该细读资料，和绘者充分沟通，如此就可以减少很多错误。

With these rooms I might now have been familiarly acquainted!

这些房间也许早就让我走熟了！我非但不必以

This will give you more room for your family and you will not have to concern yourself with how to get everything and everyone to the location that you want to go biking.

这会给你更多的空间为您的家人，你将不必担心自己怎么去和每个人的一切的位置，你想要去的自行车。

This directed network approach is also friendly to Wide Area Networks, enabling changes to subsequent destinations to traverse the network once to a single site for later fan-out to other destinations, rather than sending to each destination directly.

定向网络方式也适合在广域网（Wide Area Networks，WAN）中使用，消息不必直接发送到目的地，而可以首先发往一个节点，再通过网络发送到后续节点。

But in my world,you have nothing to fear.

但在我的世界，你不必害怕。

Without any superstructures of distillation system, the feasible region could be looked for automatically.

在不必给定精馏系统超结构的情况下，能够完成可行域的自动搜寻。

With the digital technologies he had at his disposal, he planned to make an entire feature-length film without even having to leave his apartment.

由于他在自己掌握的数字技术，他计划利用甚至不必离开自己的公寓整个正片长度的电影。

You had to know that I was alive, that you didn't have to feel guilty about anything.

贝拉：对，我必须再见你一次，让你知道我还活着，你不必觉得内疚。

You don't need to come if you feel sick.

如果你不舒服，你就不必来。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。