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Using the main result, we also obtain a simple criterion to check if a given mathrm C^*-algebra A is Abelian, that is, A is Abelian if and only for any two positive elements a, bin A, there is a'in A such that ab=ba'.

利用文中的主要结论，还得到了判断 mathrm C^*-代数 A 是交换一个简单条件，即 A 是交换的当且仅当对 A 中的任何两个正元 a， b 存在 a'in A 使得 ab=ba'。

The organic samples of P-Acetamidophenol and acetanilide with UV- Spectrophotometry in two different wavelengths are analyzed in the paper.

紫外光谱在有机物剖析中主要的用途是测定分子结构和利用紫外分光光法进行有机混合物的成分定量分析。

Results:The acetone body of all patients turned into negative, but the therapy time of therapy group was less than that in control group (P.05 ).The blood glucose levels of patients in two groups were all well controlled.

对照组小剂量普通胰岛素24 h持续静脉点滴，三餐前门冬胰岛素皮下注射，睡前合成胰岛素皮下注射，剂量从小剂量开始，以后随血糖水平调整。

In a normal spine, the spinal dura mater is a loose sheath that is anchored in the ertebral canal by the nere roots and by its attachment to the periosteum in two places: one at the foramen magnum and the dorsal surfaces of C2 and C3 and the other at the coccyx .

在正常脊柱，硬脊膜是松散的鞘性结松，其靠神经根和两个骨膜驸着部位固定在椎管内，一处在枕大孔和C2及C3，另一处在尾骨，其余部分只是悬吊和衬附于椎管内，其间有硬膜外脂肪、静脉丛和疏松的结缔组织。

Ejector seat levers come in two basic varieties: those that cause a significant visual dislocation (large changes in the layout of tools and work areas) in the program and those that perform some irreversible action .

弹射座椅操作杆有两个基本变形，即造成视觉分布上（对工作区和工具排列的巨大改变）重要变化的行动和造成一些不可逆改变的行动，这两类功能都应该对经验较浅的用户是隐藏的，其中后一个更危险。

In third part, I discussed R0 algebra in two different aspect:(1) Defined Boole element in R0 algebra. Gave the properties of Boole element and distributive rules of Boole element about finite R0 algebra. Study the filter and the stone filter of L are filters of M.

元的分布规律：研究了民代数M的滤子和民代数M作为有界分配格（记这个有界分配格为L（MO 的滤子之间的关系，得出结论：L的极小素滤子以及 L的 Stone滤子都是 M的滤子，但 L的滤子一般不必是M的滤子。

Most of the cases are in two states. There were nearly 300 cases traced to the P3 virus in Uttar Pradesh and about 140 in neighboring Bihar last year.

去年大多数病例发生在两个邦，有大约300例丙型小儿麻痹症病例发生在北方邦，还有大约140个病例发生在邻近的比哈尔邦。

Inside the national net of roads, you are once the currency was closed her To 2, in two points, between Calatayud and The Frasno, in both senses; And in Contamina, both at the province of Saragossa.

内全国网的道路，你是当货币被封闭，她以2 ，在两点之间，卡拉塔尤德和frasno中，无论是感官，而且在contamina ，无论是在省saragossa 。

The expert meeting for SIDS was held in two parts, from 5 to 7 February 2007 in Kingston, Jamaica, and from 26 to 28 February 2007 in Rarotonga, Cook Islands.

小岛屿发展中国家专家会议分两期举行：2007年2月5日至7日，牙买加金斯敦；2007年2月26日至28日，库克群岛拉罗通加。

Tactically, this has been a weakness in Japanese practice, for in the Palembang operation all equipment was concentrated in two planes, one of which crashed too far away from the personnel dispersion area to permit recovery of the equipment.

这是日军战术上的一个弱点：在空降巴邻旁的战斗中，所有装备都被集中装载到了2架飞机上，结果其中1架在离空降地点很远的地方坠毁了，机上的装备都无法为伞兵所用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。