Noun:

1. a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium

2. a board of the British government that administers and collects major dIRect taxes

During tests over several days, the pointer or tracker tracked an IR source and dIRected a laser beam at that source.

在几天的测试中，指示器或跟踪器跟踪一个红外光源，并引导激光束击中目标。

IR is found in high concentrations in some meteorites, in which the solar system's original chemical composition is preserved.

人们发现，在一些保存着太阳系原始化学成分的陨石中，铱元素的含量很高。

Since most camera flashes emit IR along with theIR burst of visible light, the one substitution allowed the prototype to transmit and record infrared light.

由于大多数相机闪光灯在发出可见光同时就会发射出红外线，这一替换使得原型机能够发送并记录红外线。

Its IR spectrum compared with that of comphor nitrimine.

它的红外光谱与樟脑硝亚胺红外光谱相似.

Statistics by IR and chemical analysis testifies the above results.

IR和化学分析数据证实了上述实验结果.

The structures were characterized by elementary analysis, IR and 1 HNMR.

它们的结构经元素分析 、 IR和1HNMR表征.

TheIR structures were characterized by elementary analysis, IR and 'ufffd 'ufffd HNMR.

它们的结构经元素分析 、 IR和′HNMR表征.

The two products are characterized by IR, MS and elements analysis.

产物由IR 、 MS和 元素分析鉴定了其结构.

Both W and EDD were factors involved in IR in both genders.

W和EDD在男女性中均是参与IR的因素.

Ageing of the asphalt coating was analysed with IR, DSC and TG.

结合红外(IR) 、 差热分析(DSC)、热失重(TG) 测试手段分析石油沥青涂层的老化程度.

These compounds were characterized by IR, 1 HNMR and elementary analysis.

这些化合物均被1HNMR、IR和元素分析证实.

And the catalysts structure is characterized by IR, XRD and BET.

并使用IR 、 XRD、BET等 表征手段分析了催化剂的结构与性能.

Close contacts between ENK - IR terminals and GABA - IR cell bodies were also detected.

ENK-ir终末 与GABA-ir神经元之间形成密切接触.

The structure was identified by ESI - MS 'u3001 IR 'u30011 H NMR and 13 C NMR.

结构经ESI-MS、IR、1HNMR、13CNMR等表征.

And theIR structures were confIRmed by IR, HNMR and elementary analysis.

并经IR 、 HNMR、元素分析等方法确定了所合成化合物的结构.

Structures of the product were characterized by IR, ESI, 1 HNMR and 13 CNMR.

产品用IR 、 ESI 、 1HNMR、13CNMR确证了产品的结构.

Ziprasidone hydrochloride and its intermediate chemical structure by 1 H - NMR , MS, IR confIRmed.

盐酸齐拉西酮及其中间体的化学结构经 1H-NMR 、 MS 、 IR确证.

FT - IR shows DLC film comprises CH 3'u3001 CH 2'u3001 CH 'u3001 Si - O - Si , Si - O - C and Si - CH 3 bond.

通过FT-IR分析研究表明:薄膜中含有CH_3、CH_2、CH、Si -O-Si,Si -O-C 和Si-CH_ 3等化学键.