查询词典 M. M.

Letφ:(Z_2)~k×M~n→M~n denote a smooth action of the group(Z_2)~k={T_1,…,T_k|T_i~2=1,T_iT_j=T_jT_i} on a closed n-dimensional manifold M~n.

设φ：(Z_2)~k×M~n→M~n是群(Z_2)~k={T_1，…，T_k|T_i~2=1，T_iT_j=T_jT_i}在n维光滑闭流形M~n上的作用，群(Z_2)~k由k个可换对合生成。

And the closure property of inverseM-matrices under Hadamard product are analyzed, the properties of generalizedPerron complement of inverse M-matrices, inequality of Fan product of H-matricesand Perron root estimation of nonnegative matrix are studied.

本文研究了逆M-矩阵的性质和完成，并且讨论了有关逆M-矩阵Hadamard 积的封闭性，不可约逆M-矩阵的广义Perron补，H-矩阵的Fan积不等式以及非负矩阵的Perron根的估计。

The results show that there are two types of pore in the sintered alloy, i.e., one is coarsen pores with diameter more than 30μm, the other is thin pores with diameters less than 10μm. These two types of pore evolve from two voids in green compacts respectively.

研究结果表明：合金中的孔隙主要有2种类型，即粒径为30μm左右的大孔隙和粒径在10μm以下的小孔隙，这2种孔隙分别由生坯中的2种主要间隙在烧结过程中演变而成。

The strain WGR702 was Gram-positive and coccus, the diameter of the cell was 1.5 μm~2.5μm.

该菌为革兰氏阳性球菌，直径1.5 μm~2.5 μm。

For example, the cofinality of ω is ω, because the sequence ω·''m''( where ''m'' ranges over the natural numbers ) tends to ω; but, more generally, any countable limit ordinal has cofinality ω.

例如，ω的共尾性是ω，因为序列ω·''m''(这里的''m''取值于自然数之上)趋向于ω；但是，更加一般的说，任何可数极限序数都有共尾性ω。

Yap proved that the planar graph with maximum degree △≥ 13 is equitably m—colorable for any m ≥△.

Yap和Zhang[10]证明了：最大度Δ≥13的任意平面图G，对任意整数m≥Δ，都存在均匀m-染色。

K-32A in accordance with the views of the captain, the water point at the fire scene about 8km from the Department of the Yalong, M-26TC helicopter flew Mianning come on the scene of the fire after the fire bucket implementation, a total of 7 barrels of sprinkler. M-26TC helicopter back to the market after the 9289 and 9475 No. K-32A helicopter sorties second take-off on the implementation of the fire bucket fire, the fire sprinkler total of 10 barrels, from the ground commander of the first-line feedback, the effect of a good fire-fighting bucket.

根据K-32A机长的意见，将取水点定在离火场约8KM处的雅砻江，M-26TC直升机加油后飞赴冕宁火场实施吊桶灭火，共洒水7桶。M-26TC直升机返场后，9289号和9475号K-32A直升机第二架次起飞对火场实施吊桶灭火，共对火场洒水10桶，从地面一线指挥员反馈情况，吊桶灭火效果很好。

In this paper, we introduce the notion of M-valuation systems for a commutative ring, and investigate the M-valuations from the inside of a commutative ring.

在本文中，我们引进了M-赋值系统的概念，从环的内部给出交换环上M-赋值的结构。

In the synthesis operation operator choice, through the value and the related function type comparison, points out the operator the deficiencyof M, and recommendation use the operator of M .

在合成运算算子的选择中，通过数值及有关函数类型比较，指出M算子的不足之处，并推荐使用M算子。

The results showed that hexadecanoic acid diethanolamide and Daqing crude oil has favorable compatibleness, the binary system containing hexadecanoic acid diethanolamide(with the mass concentration of 0.2%) and HPAM(with the concentration of 1000mg/L)can produce ultralow interficial tensions 8.94×10~(-3mN/m against Daqing crude oil; the three compound combination system containing hexadecanoic acid diethanolamide(with the mass concentration of 0.2%) and HPAM(with the concentration of 1000mg/L)and Na_2CO_3(0.1%)can produce ultralow interficial tensions 6.34×10~(-4mN/m against Daqing crude oil.

其中，十六酸二乙醇酰胺与大庆四厂原油具有良好的配伍性，十六酸二乙醇酰胺0.2%、HPAM1000mg/L组成的二元驱油体系与大庆四厂原油可形成超低界面张力，最低可达到8.94×10~(-3)mN/m；十六酸二乙醇酰胺0.2%、HPAM1000mg/L、Na_2CO_31%组成的三元驱油体系与大庆四厂原油间的界面张力最低可达6.34×10~(-4)mN/m。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。