杆

And then with the analysis to the regularity and the factors impacting the export, the ones (link 2 and link 3) which affect the quotiety of the velocity pulsation most have been put forward.

通过分析得出各杆件对输出速度不均匀系数的影响，其中杆2、杆3长度对装置输出速度不均匀性影响最大。

The position of string nock point of recurve can directly affect the archery s dynamic equilibrium and arrow s swing range , its balance and targeting rate.

箭巢位置的确定将直接影响反曲弓的动态平衡稳定性和箭杆离弦后箭杆尾部的摆动幅度，并最终影响箭杆的飞行稳定性和射箭命中率。

Using the method of equivalent worm gearing, the assembly condition of Archimedes spiroid gears has been obtained.

通过锥蜗杆传动副的啮合分析，用当量圆柱蜗杆副的分析方法，得出阿基米德锥蜗杆副的装配条件。

Our company special in manufacturing all kinds of screws and barrels for the plastic extruder and innovative spirit of apeciality,depends on the strengthful technique,advanced producing technics,first-class products and services,passes the ISO9001:2000 certified by the quality management system,which makes the brand of Chuangxin a reliable name in the same industry.

本公司是一家专业制造橡胶挤出机冷喂料销钉式机筒、螺杆，热喂料机筒、螺杆，各种塑料挤出机、注塑机，机筒螺杆的生产企业。公司秉承专注专业的创业精神，凭借雄厚的技术力量，先进的生产工艺，一流的产品和服务，并通过ISO9001：2000国际质量管理体系认证企业，使创鑫品牌成为行业内一个信赖的名字。

The ballistic experiments of tungsten long-rods penetrating composite laminates and steel target are investigated. The experimental results show that the penetration performance of torqued long-rod is stronger than that of non-torqued rod.

本文首先进行了钨合金杆弹侵彻有限厚度的钢靶和复合靶的侵彻实验，实验结果表明预扭转钨合金杆弹侵彻贯穿能力比未扭转钨合金杆弹要高。

Chicken IL-15(ChIL-15), Which was discovered in 2001, plays a main role in activating NK cells and CD8+ memory T cells, and may therefore have potential as a vaccine adjuvant.According to published ChIL-15 gene sequence, a pair of primers were designed and synthesized to clone ChIL-15 cDNA from ConA-activated chicken splenocytes by RT-PCR. Recombinant plasmid pUC19ChIL-15 carrying the ChIL-15 gene was constructed. The gene encoding mature ChIL-15 (mChIL-15) was amplified from pUC19ChIL-15 by PCR and cloned into pMD 18-T vector. After digested with Kpn I /Pst I , the mChIL-15 gene was subcloned into prokaryotic expression vector pPRoEX橦Ta and transformed into E.coli DH5a .The transformant was induced by IPTG, and the recombinant ChIL-15(rChIL-15) was expressed as a fusion protein with a histidine hexamer tag at the N-terminal end of the protein. Following expression, the protein was purified by ProBond?Nickel-Chelating Resin. The uninduced and induced protein lysates and the purified protein were separated by SDS-PAGE and transferred onto nitrocellulose membrane to identify rChIL-15 by Western blot. The rChIL-15 was used to immune the guinea pig to obtain rChIL-15 polyclonal antibody.

参考已发表的ChIL-15基因序列，设计合成引物，应用RT-PCR技术从刀豆球蛋白A活化的白来航鸡脾淋巴细胞中克隆ChIL-15 cDNA，将其与SmalⅠ酶切处理的pUC19载体连接，构建重组质粒pUC19ChIL-15；用PCR技术从pUC19ChIL-15中扩增出去信号肽的成熟ChIL-15(mChIL-15)基因，与pMD 18-T载体相连构建重组质粒pMDChIL-15；然后用KpnⅠ／PstⅠ双酶切下mChIL-15基因片段，定向亚克隆到经同样酶切处理的带有6个组氨酸标签的表达载体pP_RoEX~HTa中，构建重组质粒pP_RoChIL-15，对其测序确认读框正确后，转入大肠杆菌DH5α中诱导表达并进行纯化，用重组ChIL-15(rChIL-15)免疫豚鼠，制备多克隆抗体；再用HindⅢ／PstⅠ从质粒pP_RoChIL-15上切下mChIL-15基因，定向亚克隆到经同样酶切处理的杆状病毒转移载体pMelBacB中，经酶切、PCR和序列测定鉴定后，与杆状病毒线形化DNABac-N-Blue~(TM DNA共转染Sf9昆虫细胞，经三轮蚀斑纯化，构建重组杆状病毒rBac-ChIL-15，用该重组病毒感染处于对数生长期的Sf9细胞，按不同的时间收取样品，离心后对其上清和沉淀进行SDS-PAGE和Western blot分析。

A staff that holds on its cleft end the unspun flax, wool, or tow from which thread is drawn in spinning by hand.

纺纱杆在杆的开裂的一端夹有未纺的亚麻、羊毛或丝束，手转动木杆，线从中纺出

A staff that holds on its cleft end the unspun flax,wool,or tow from which thread is drawn in spinning by hand.

手工纺纱杆在杆的开裂的一端夹有未纺的亚麻、羊毛或丝束，手转动木杆，线从中纺出

Taking the steel roof of new station building at Chongqing Jiangbei international airport as example, it's presented the finite element analysis on the experimental data of circular hollow section unstiffened T-joints with straight or fold chord.

以重庆江北国际机场新航站楼钢屋盖为例，对弦杆为直杆和折杆两种类型的T型圆钢管相贯节点试验数据进行有限元分析。

Three stopes with different spans (8m , 16m, 24m ) were selected for the purpose of stress study with epoxylite model . The distributions of roof stress under the condition of 1×0.8m support grid compared with unsupporting , and that of roof bolting patterns of 0.8×0.8m, 1×0.8m, 1.6×0.8m were also investigated . Finallg , the authors evaluate the practical effects of roof ?

采用环氧树脂模型研究了三种不同跨度(8米、16米、24米)采场，在支护网度为1×0.8米~2及无锚杆护顶时顶板应力分布状况，同时也研了在相同条件下，锚杆支护网度为0.8×0.8米~2、1.6×0.8米~2时顶板应力分布状况，从而阐明了锚杆支护的实际效果。

If you are committed to an education career, then the Master of Arts in Education from Ashford University is for you.

如果你是致力于教育事业，那么，艺术教育硕士学位阿什福德大学是给你的。

objective:to explore the expression of survivin protein and its mrna in rectal cancer and their clinic significance.

目的：研究凋亡抑制因子survivin蛋白及其mrna在直肠癌组织中的表达及其与临床病理关系。