性交

The fertility of F_1 and backcross progenies from crosses between the alloplasmic wheatvarieties Chris with 10 different Aegilops cytoplasms and 77(2),a 1B/1R wheat-ryetranslocation line,was investigated.

调查了10种不同山羊草细胞质的异质小麦品种 Chris 与1B /1R 小黑麦易位系77(2)杂交 F_1及回交后代的育性表现，结果表明：1。

Function : The product uses for natural gum and various kinds of rubber alloy , it is responsivity inextractable antiager SF-98. maleimide system can acceptfreeradical to open double linkage during vulcanization.It forms into horizontal linkage to come into being crosslinking with rubber .it has inextractable antiager effect .and horizontal linkage for thermal oxidation has excellent stability.

功用：该品用于天然胶及各种成合胶，是一种反应性不抽出防老剂，由于马来酰亚胺体系在硫化过程中可接受自由基打开双键，形成横键与橡胶产生交联，起到了防老不抽出的作用，同时这横键对于热氧化作用具有很高的稳定性。

However, the area is less studied than other areas of endophyteresearch world wide. Therefore, a series of experiments were carried out in laboratory,glasshouse and field to compare the responses of endophyte infected plants andendophyte free plants of perennial ryegrass varieties to 10 fungal pathogensisolated from turf type ryegrass in Lanzhou. The pathogens used in the experimentswere Alternaria alternata、Bipolaris sorokiniana、Fusarium avenaceum、Curvularialunata、Ascochyta leptospora、Fusarium acuminatum、Fusarium chlamydosporum、Fusarium oxysporum、Fusarium solani and Gliocladium roseum. In addition, someprotective enzymes activity and alkaloids contents of E+ and E- plants were measuredand LpsA gene of the common strain - Lp19 and mutant strain -AR1 of Neotyphodiumlolii were sequenced to identify their ...

本研究在初步明确兰州市坪用黑麦草内生真菌及其病原真菌多样性的基础上，在实验室、温室和田间开展了系列研究，比较了带内生真菌和不带内生真菌的黑麦草在离体和整株条件下对细交链孢、离蠕孢、燕麦镰孢、新月弯孢、小孢壳二孢、锐顶镰孢、厚垣镰孢、尖镰孢、腐皮镰孢和粉红粘帚霉等10种病原真菌的抗病性，测定了E+和E-植株数种保护酶活性及其生物碱含量的变化。

Objective: To investigate the feasibility and both the early and long-term effects of the joint of intervention treatment and laparoscopic resection of lumbar sympathetic trunk and autogenetic blood stem cell transplantation for the treatment of thromboangiitis obliterans.

目的：观察联合介入、腹腔镜下腰交感干切除及自体外周造血干细胞移植治疗血栓闭塞性脉管炎可行性和近期效果。

The near isogenic lines containing the S5n allele from different original WCVs . and genetic background from japonica variety Balilla were crossed with 20 indica-japonica varieties representing different ecotypes, the results indicated that genetic effect of S5n from different wide compatibility varieties was not completely same, and that the compatibility power and compatibility spectrum of near isogenic lines carrying S5n from different donors were different.

以不同来源的广亲和品种为供体、以粳稻品种Balilla为受体的近等基因系与不同籼粳测验种测交结果表明，不同起源的广亲和基因S_5~n对杂种育性的遗传效应是不完全相同的，亲和力和亲和谱都存在差异。

In searching for RAPD marker linked to the genes controlling brachytic stem, 260 RAPD primers were applied to screen four parents of three combinations and RIL. Polymorphic bands revealed by the primer S-506 exhibited the best repeatability among all primers.

利用4个亲本和1个重组自交家系筛选260个RAPD随机引物，其中有1个引物S-506扩增出的多态性条带有较好的重复性。

When caprylic aldehyde content was at the range of 0～4%,the water vapor permeability of the modified wheat protein cross-linked with formaldehyde increased. When the caprylic aldehyde content increased,the water vapor permeability decreased because of the chemical modification.

辛醛含量在0～4％范围增加时，甲醛交联的改性蛋白质塑料的透湿性增强；当辛醛含量继续增加，透湿率有一定程度的下降。

Considering pencil of matrices with centrosymmetric could not satisfy characteristic equations in practice, it was necessary to study the centrosymmetric solution of the matrix equation least square problems, and to give pencil of matrices with centrosymmetric of the least squares problems in model updating.

对线性结构的有限元动力模型修正问题，通过灵敏度分析，确定要修正的参数，由正交性条件和特征方程得到相应的修正量方程。

Our findings suggest that increased brain activity in ipsilateral pons involved in trigeminal vascular reflex may be related to the pathogenesis of pain in cluster headache.Other brain regions known to be response to pain,such as cingulated gyrus and prefrontal cortex might be also involved in CH attack processing.

同侧脑桥活动增强可能通过三叉神经副交感反射参与了丛集性头痛的疼痛发生机制，其他疼痛相关脑区如扣带回和前额叶皮层等可能也参与了其疼痛发生机制。

Dehydration process based on hollow fiber composite membrane is one of the crucial and effective methods to remove water vapor from industrial gases such as light hydrocarbon, compressed air, natural gas and so on. Dehydration of propylene with VP method was studied in the thesis. We prepared the PVA/PS、CS/PS and PVA-CS/PS hollow fiber composite membranes by spread method. The permeation behavior of water vapor among coagulable light hydrocarbons through composite membranes and asymmetric membrane was researched by vapor permeation method. Also a differential mathematical model was established which can describe dehydration of gas phase propylene.

本论文以采用蒸气渗透法脱除丙烯中微量水分为目标，制备了 PVA/PS、 CS/PS、PVA-CS/PS 中空纤维复合膜；研究了可凝性轻烃蒸气中的微量水分在复合膜、非对称膜中的渗透行为，建立了描述丙烯气相脱水的数学模型，并进行了模拟计算；深入探讨了水蒸气在交联 PVA 致密膜中的渗透机理。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷