Ethylene and trans-dichloroethylene are both inactive in the infrared in this region.

The structure of industrial alkylphenol was characterized by NMR and IR spectroscopy.

利用核磁共振和红外光谱法研究工业烷基酚的结构.

Its stucture was investigated through IR, 1 H NMR and mass spectrum.

用红外光谱 、 核磁共振氢谱和质谱推测了产物的结构.

In order to evaluate precisely the surfaces formed from different machining methods, computers and admeasuring apparatus were used to collect the data of surface outlines and quantitatively calculate and analyze the outline expansion length ratio.

为了对不同机械加工方法形成的表面进行准确的评价，通过计算机和测量仪采集表面轮廓数据，对轮廓展开长度比进行了定量的计算与分析。

Tests also show this. Oil Pour Point Automatic Admeasuring Apparatus

试验也证实此点。石油倾点自动测量仪

Designing an admeasuring apparatus according to GB/ T 3535-1991, including principle of measure-ment, measuring circuit and compensation analysis of temperature measurement.

本文介绍了根据GB/T3535-1991的操作规范设计的测量仪，包括其测量原理、测量电路和温度测量校正的分析。

Once the piece is done, the file is saved and sent to a 3D printer, where it's printed out in actual clay.

当作品完成后，文件会保存下来并传送到3D打印机上，打印出真实的陶器来。

While the expensive 3D printers are out of reach for the average person, enormous strides have made 3D printing even more accessible to all.

这些昂贵的3D打印机对于劳苦大众是难以企及的，3D打印在大众化方面也取得了长足进步。

The general term the industry uses for this is "additive manufacturing" , but the most widely used devices are called 3-D printers.

工业中将这种生产一般称之为“附加生产”，但是其中运用最广泛的是叫做3D打印机的设备。

A prototype for an electric vehicle -- code named Urbee -- is the first to have its entire body built with a 3D printer.

一辆电动汽车的原型——代号为Urbee，这辆汽车是第一辆全部车体都由3D打印机制造的汽车。

In fact, 3D printers may become the new must-have gadget for artists, entrepreneurs, or anyone who needs a simple replacement part.

实际上，3D打印机可能成为艺术家、企业家或者其他任何需要一个更简单配置的人的必备品。

The 3D printing technology eliminates tooling, machining and handiwork, creating great efficiencies when a design change is needed.

3D打印技术排除了使用工具加工、机械加工和手工加工，当某个设计细节需要改动时创造了极高的效率。

Service mechanics could have portable 3D printers in their vans, or hardware stores could offer part-printing services.

客服机械师可能在其货车上放有便携式3D打印机，或五金店可提供打印服务。

The technology, known as D-Shape, uses sand and an organic binder to create huge structures.

这台名为“D外形”的3D打印机，可以利用有机粘结剂，以沙土为原料建造大型建筑。

He believes 3D printers could "produce a new breed of mechanical engineers" , especially in rural regions.

他相信3D打印机能“培养出新生代的机械工程师”，尤其在农村地区更有发展前景。

Other forms of 3D printing have since emerged (see article), but they all work as an additive process, building objects up layer by layer.

其他形式的3D打印机已面世，但全都是运用添加处理，一层层地把东西建造出来。

Now a product can be designed on a computer and "printed" on a 3D printer, which creates a solid object by building up successive layers of material.

而现在我们可以在电脑上设计好产品的各种参数，再用3d打印机“打印”出来，此过程通过喷涂一层层连续的材料逐渐塑造出固态的目标模型。

Tantalum pads are individually designed for patients by computer-aided design and precise 3D-printing technology.

钽垫块是通过计算机辅助设计和精确3d打印技术，为病人量身定制的。

Conclusion Glare disability in twilight condition is more dangerous for flying safety.

结论在暮视时眩光失能对飞行安全危害更大.

Number indicating the degree to which disability glare is controlled.

指示失能眩光受控程度的数字.

Discomfort glare and disability glareare the two important glare.

眩光一般分为不适眩光和失能眩光.