无子的

It obtains that the transport operator A has no complex eigenvalue s,and the spectrum of the transport operator A consists of finite real isolated eigenvalues which have a finite algebraic multiplicity in trip Pas.

本文研究了板几何中一类具各向异性、连续能量、均匀介质的迁移算子的谱，得出了该算子A在带域Pas中无复本征值和由有限个具有限代数重数的实离散本征值组成等结果。

All superclasses of closed unbounded classes are stationary and stationary classes are unbounded, but there are stationary classes which are not closed and there are stationary classes which have no closed unbounded subclass ( such as the class of all limit ordinals with countable cofinality ).

所有闭合无界类的超类是固定的并且固定类是无界的，但是有着不闭合的固定类并且有着没有闭合无界子类的固定类(比如带有可数共尾性的所有极限序数的类)。

In the second chapter, the suspension bridge equation on unbounded domainR1 is considered. Applying with the method of decomposing operator and thetheory of constructing some compact operator in weighted space, the existenceof global attractor is obtained.

在第二章中，运用带权空间构造一类紧算子和算子分解的方法，研究了该方程在无界区域R1上的情形，得到了其全局吸引子的存在性。

In Quantum Gravity theory, gravity is produced by massless gravitons so that gravitons now represent individual packages of curved space that travel through space at the speed of light.

在量子引力论中，引力产生于无质量的引力子，只有这样才能解释引力子何以以独立的空间弯曲因子的形式在空间中以光速传播。

The high cost of powder flexible putty results in the high cost of the admixed latex powder that contains unbonding talcum powder and powdered whiting, besides fulfilling the performance of powder flexible putty requires high content of latex p.

粉状柔性腻子产品成本较高的原因是乳胶粉的成本高，除了直接成本外，乳胶粉中还含有一定量无胶结性能的滑石粉、重质碳酸钙等，使之用量必须很高才能满足性能需要；适合柔性腻子的产品类型是由液料和粉料组成的双组分腻子，该类腻子在满足JG158—2004标准要求的情况下，具有合理的成本，完全能够为市场接受。

In order to minimize the recognition errors caused by inaccurate model estimations from those toned triphones with limited training samples, we proposed to initialize toned triphones using their own toneless triphone model parameters.

在实验中发现，某些带调三音子的训练数据稀疏会引起识别错误率的上升，为了在一定程度上减少这种影响，提出了使用其无调三音子的模型参数对有调三音子进行初始化。

An improved genetic algorithm based on "approximative elite","study operator" and "chaos operator" has been presented in this paper according to the features of reactive power optimization in power system.

中文摘要：根据电力系统无功优化问题的特点，提出了一种基于近似最优个体、学习算子和浑沌算子的改进遗传算法。

Plantlet regeneration from cotyledon of Citrullus lanatus cv. Zhangkang No. 4 was studied. The results showed that aseptic seedlings should be cultured in dark for 3d, then exposed to a photoperiod of 16/8h/d for 3d. The callus induction rate was higher in cotyledons placed facing downwards to the medium than in those facing upwards. The highest induction rate occurred in MS medium containing 6-BA (2.0mg/L), kinetin (1.0mg/L)and GA3 (1.0mg/L). The induction initiated in dark and took 7 days, while callus growth and differentiation proceeding for 7 days under 16/8h light-dark cycles. A highest rate of embryogenic callus was obtained after 3 successive subcultures.

以无子西瓜郑抗4号无菌苗子叶为外植体，进行了体细胞胚发生及植株再生的研究，结果表明，无菌苗应先进行3d暗培养，然后采取光照16h/d和黑暗8h/d培养3d；将子叶的叶面朝下放置于培养基上的愈伤组织诱导率高于叶面朝上的培养方式；子叶诱导胚性愈伤组织的最适培养基配方为MS+6-BA2.0mg/L+KT1.0mg/L+GA31.0mg/L；诱导需要在黑暗条件下启动，进行7d暗培养，而生长分化于光照16h/d和黑暗8h/d条件下培养7d；继代3次得到的胚性愈伤组织最多；最适生根培养基配方为1/2MS+IBA0.3mg/L。

The intracranial mass could not be resected because of its location surrounding both carotids arteries, nor could craniospinal radiation be used because of her young age, the baby receied 7 cycles of CE-CSA, with intratecal and intra-Omaya Topotecan and Cytarabine.

由于年龄很小，所以也不能使用脑脊髓放疗。检测发现她是内含子7中169碱基对缺失的杂合子，导致外显子8的错误剪切而形成无功能的RB蛋白肿瘤明显缩小伴固视和视功能恢复。

She had no home, no family, no friends — and her life was a basket of unsold fish.

她无家可归，无夫无子，无亲无友——她的生活就是一篮没卖出去的鱼。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。