查询词典 O2

Most of insects usually don not have the hemcoyte for transporting oxygen, the respiratory of insect is chiefly accomplished by the tracheal system that spreads all over the whole body. Outside oxygen enters the tracheal system through spiracles arranged in two sides of body and is transported through trachea and tracheoles to meet directly the needs of tissues.

一般认为大多数昆虫体内没有运输氧的血细胞存在，昆虫呼吸主要是靠遍布全身的气管系统来完成，O2靠扩散作用由分布于昆虫身体两侧的气门处进入，经气管、微气管的运输而直接给组织供氧。

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此课题包括了煤的性质、锅炉的运行、煤灰尘收集器操作和边流系统

In addition, the luminescent properties of Sr 4Al 14 O 25 ∶Eu, Dy is improved by the additives, especially H 3BO 3, which increases the initial brightness from 1 756 mcd·m -2 to 5 327 mcd·m -2 and prolonges the afterglow time.

尤其是H3BO3的加入，使 Sr4Al1 4 O2 5 ∶Eu ，Dy材料的初始亮度大大提高，并使发光持续时间延长。初始亮度从 175 6mcd·m- 2 增加到 5 3 2 7mcd·m- 2

It suggests that periphyton might be nitrogen limited in the lagoon.O2 evolution is obviously a better method to determine in situ primary productivity of periphyton. It is safer and cheaper than 14C method.

综合看来，溶氧法是较好的方法，因其可短时间内野外於直接测得附生藻类的生产力的变化，又有低危险性与低成本的优点。

X0 O2 ?7 z; X (34)covering all risks including war risks as per ocean marine cargo clauses and air transportation cargo insurance clauses and ocean marine cargo war risk clauses and air transportation cargo war risk clauses of the Peoples Insurance Company of China dated

Z8 2 o%？ Q7 X6 r+ Q5 h 按照中国人民保险公司×年×月×日海洋运输货物保险条款和航空运输货物保险条款以及海洋运输货物战争险条款和航空运输货物战争险条款投保海空联运一切险和战争险。

Decomposition temperature, impact intensity and volume resistance of ordinary SiO_2/ epoxy resins are 308℃, 17.13kJ·m~(-2) and 2.80×10~(14)Ω·cm~(-2) respectively.

普通Si O2 /环氧树脂的热解温度、冲击强度和体积电阻率分别为 30 8℃，17.13k J·m- 2和 2 。80× 10 1 4Ω·cm- 2。

Among these parameters, Ar/O2 is the key factor for preparation of perfect vanadium oxide thin films.

其中氩氧比例对于制备具有高性能的氧化钒薄膜是至关重要的参数。

The maximal conductivity of the ceramic is 3.2×10－2 S·cm－1 in O2 at 1000 ℃. The conduction in the ceramic is purely oxide-ionic with oxygen ion transference number of 1 over the whole temperature range of 600～1000 ℃. This ceramic is obviously superior to YSZ ceramic in oxygen pump performance.

结果表明，该陶瓷样品在600～1000 ℃下氧离子迁移数为1，氧离子电导率的最大值为3.2×10－2 S·cm－1，是一个优良的氧离子导体；它的氧泵性能明显地优于YSZ。

The ionic conduction of La2Mo2O9 was predominant with the electronic transference number less than 0.05 above an oxygen partial pressure of about p O2=10-7Pa at 700 ℃, and below this pressure the electronic conduction became obvious.

在700oC、氧分压高于10－7Pa条件下，离子传导占主导地位，电子迁移数低于0.05，而低于这一氧分压时，电子传导开始变得明显。

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在一个漫长的赛季的结尾，德罗巴第116分钟的进球为切尔西赢得了足总杯冠军，穆里尼奥，可以理解现在已经一脸疲态了，被问到他的队伍应该拿到这项荣誉吗。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐