杆环

In them, choose the best control scheme, PD control scheme with two loops, as the real-time control scheme, and tests it on the linear 1-stage inverted Pendulum real-time control system, The result demonstrate that this strategy can realize the position of dolly and the angle of haulm to be close-loop controlling simultaneity.

通过在实际单级倒立摆装置上的实时控制试验证实所提出的控制方案可以实现了对小车位置和摆杆偏角的同时闭环控制。

Furthermore,we verify the good contact state with section diagrams in the virtual reality entity of the involute helicoid double enveloping worm gear pair.

并在进一步完成的"渐开面二次包络环面蜗杆副的虚拟实体"中，以断面图检验了其良好的啮合状态。

Screw retainer ring onto nurser and tighten securely.

螺杆扣环上nurser和加强安全。

We discovered 460~500 nm line virus and 300 nm bacilliform virus in plant by electronic microscope. They size accord with Odontoglossum ringspot virus and Cymbidium mosaic virus.

感病文心兰和大花惠兰样品在电镜下可观察到长约460~500 nm的线状病毒粒体和长约300 nm的杆状病毒粒体，它们分别与已报道的建兰花叶病毒和齿兰环斑病毒粒体大小一致。

He laid the notch of the arrow on the oxhide bowstring, and drew both notch and string to his breast till the arrow-head was near the bow; then when the bow was arched into a half-circle he let fly, and the bow twanged, and the string sang as the arrow flew gladly on over the heads of the throng.

他运气开弓，紧捏着箭的糟口和牛筋做就的弓弦，弦线紧贴着胸口，铁的箭镞碰到了弓杆。他把兵器拉成了一个拱环，借大的弯弓鸣叫呻喊，弦线高歌作响，羽箭顶着锋快的头镞飞射出去，挟着暴怒，呼啸着扑向前面的人群。

The tailboom is made from an extruded aluminum tube with reinforcements bonded to the tube where the tailboom support struts attach, and formed aluminum saddles are riveted to the tube at the horizontal tail and ringtail attachment points.

铝合金尾管附有一根支撑杆强化其结构，铝合金托架以铆钉固定在尾管上的水平尾翼及尾翼环的接点上。

Aprons are provided with holes for screw rods of jack ing devices.

提升环留有通过起重装置螺杆的孔。

Ltd is a manufacturer who is specialised in adopting hi-tech in research design and manufacturing the precised slip ring and joystick.

Ltd 杭州全盛电气有限公司是一家专业从事精密导电滑环和控制杆研发及生产制造于一体的高科技企业，是中国最闻名的专业制造商之一。

Measured and recorded Records shaft / rod diameter, pore size and depth of the stuffing, and then water seal ring, stuffing box at the bottom to the top of the record the distance.

测量与记录记录轴/杆的直径、填料函孔径和深度，且当时用水封环时，记录填料函底部至顶部的距离。

Washing, cutting ring and eyes require board (disc valve pump valve is the plate with the tie bar and wear-resistant film from top to bottom) the gap is smaller, there is a large amount of water to be strictly sealed, so to clean the ball forward after the infiltration of water .

水洗，要求切割环和眼睛板(碟阀泵则是板阀与系杆和上下耐磨片)的间隙要小，需有大量的水，严格密封，做到清洗球后的水不向前渗透。

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。