中杆

I had a good start from the pole position, and controlled the pace during the first stint.

我从杆位的发车很好，而且在第一阶段的比赛中控制了比赛节奏。

Last year I gained my first ever Formula One pole position there and came second in the race.

去年我在这里获得了自己第一个一级方程式的杆位，而且在正式比赛中拿到了亚军。

Who is the youngest driver to have obtained a pole position in F1?

谁是在F1 赛事中夺得杆位的最年轻的赛手？

The modified S1 subunits were abundantly expressed by recombinant autographa californica nuclear polyhedrosis viruses in insect cells and larva.

然后使用重组杆状病毒技术使这些S1亚单位在昆虫细胞和昆虫幼虫中实现了高水平表达。

Power Tongs and Torque Turns Load Cells: Designed for use in power tongs or drill pipe make-up and break-out applications.

动力钳和自动旋紧管箍机的载荷压力传感器：设计用在动力钳或钻杆的组装和拆卸应用中。

Sucker rod oil pumping is primary method in all these artificial pumping methods precedently.

目前，在各种人工举升采油方法中，有杆抽油法仍居于首要地位。

Design of eccentric rotating conjugate cams paper-transferring mechanism ;2. On the basis of the principle of TYM 750 Die Cutting and Foilstamping Press,the mathematical model for the paper-transferring mechanism was constructed.

根据TYM 750烫印模切机递纸机构的工作原理，构建递纸机构的数学分析模型，按照递纸吸嘴的运动轨迹，求出递纸机构中凸轮从动杆的运动规律，利用反转法得到凸轮的廓线。

Results Same conservative sites and key catalytic sites existed among SjLDH and LDHs from other species. Similarity of SjLDH compared to CsLDH, TvLDH and HsLDH was 75%, 17%, 58%-60% respectively. Phylogenetic analysis demonstrated that the evolution relation between SjLDH and DmLDH was closer than the relation between SjLDH and CeLDH, the relationship between SjLDH and HsLDH-B,-C was closer than HsLDH-A. Three trans-membrane regions were found, the region of 98aa-106aa in three hydrophilia regions located outside of membrane was inferred as the major antigen epitope. This antigen epitope had significant difference with LDHs from protozoon （ Pf ., Tg ., Tv .） and had 1-3 amino acid residue difference with MmLDH, HsLDH-A,-B,-C, and was the same with CsLDH. One of the key catalytic residues and substrate binding loop were located in this region. Tertiary structure demonstrated that 98aa-106aa was on the surface of the protein and formed a substrate binding loop, other two key catalytic sites were at the position near the loop.

结果 SjLDH与其他物种的同源序列含相同的保守位点及催化活性位点，与华支睾吸虫LDH同源性最高为75％，与阴道毛滴虫LDH同源性最低为17%，与人LDH（HsLDH-A，-B，-C）的同源性为58%~60％； SjLDH与果蝇的进化距离较秀丽隐杆线虫为近，3种人LDH中与HsLDH-B、-C的进化距离较HsLDH-A为近；该蛋白具有3个跨膜区域，3个高亲水性区域，主要的线性表位98aa~106aa位于膜外，与原虫LDH相同区域差异显著，而与其他LDH有1~3个氨基酸的差异，关键催化位点之一及底物丙酮酸结合区域位于该区域，蛋白质同源模建分析表明该区域位于蛋白表面形成环状结构，3个关键催化位点位于该区域或在其附近。

The performance of sucker rod pump has close relation to economic benefit of oil field.

抽油泵作为有杆泵抽油系统中的核心设备，其性能的好坏直接关系到油田经济效益的高低。

Drill a small hole slightly larger than the 4-40 rod through the radio box, lay your 1/4 scale steering servo in the box and line it up so the rod meets the servo horn without any excessive bending of the pushrod.

钻一个小孔略大的4-40棒通过广播中，奠定您的1 / 4规模的指导伺服方块中和线，让杆符合伺服非洲之角没有任何过度弯曲的的两个。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。