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A cataphoresis discharge tube of 7mm inner diameter and 38cm active length was made for the He-Sr+ laser. The recombination laser at 430.5nm and the R-M transition laser at 1.03μm were obtained with the modified Blumlein circuit by high-frequency longitudinal pulsed discharge. The laser components are concentrated on the 430.5nm wavelength.

设计制作了7mm内径和38cm有效激励长度的电泳式He-Sr+激光管，采用修饰Blumlein电路，通过纵向高重复率脉冲放电激励，实现了一价锶离子复合激光430.5nm和R-M跃迁激光1.03μm的同时振荡，其中复合激光占主要成分。

The results indicated that there was a evident correlationship between chromocenter diameter,heterochromatin number and plant ploidy level.The chromocenter diameter and heterochromatin number of haploid and double haploid are 5.1,5.0 μm and 13.3,11.9 μm respectively.

研究发现，黄瓜染色中心直径和异染色质数目与植株倍性呈正相关，可作为黄瓜倍性鉴定的间接指标，其中单倍体染色中心直径平均为5 1μm，双单倍体为13 3μm，单倍体异染色质数目平均5 0，双单倍体为11 9。

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。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。