弹簧

Cylinders used to open the master switch, and then clockwise rotating low pressure regulator screw table to compress the main spring and transmission film, pad, and push-rod spring open the trap door.

使用时先打开钢瓶总开关，然后顺时针转动低压表压力调节螺杆，使其压缩主弹簧并传动薄膜、弹簧垫块和顶杆而将活门打开。

Are the main products are: LD series of e-Rally-testing machine, MWD Series Panel universal test machine, WDW series of electronic universal test machine, TLS series of spring tension and compression testing machine, QTW series of gas spring testing machine, self-locking nut to reverse Testing machine, the impact testing machine, and other products.

现主要产品有：LD系列电子式拉力试验机、MWD系列人造板万能试验机、WDW系列电子万能试验机、TLS系列弹簧拉压试验机、QTW系列气弹簧试验机、自锁螺母扭转试验机、冲击试验机等多种产品。

Main products: Pressure riveting screw, nut riveting pressure, pressure riveting nut -, Inserts into the nut, rose riveting nut, floating nut, ground-nuts, nut-squeezing, Spring screws, self-locking nut, positioning support columns, targeted marketing, sales support cards, in spring, the combination of screws, rivets hollow, as well as various Pressure riveting type of plastic fasteners, etc.!

主要产品有：压铆螺钉，压铆螺母，压铆螺母柱，镶入螺母，涨铆螺母，浮动螺母，接地螺母柱，挤压螺母柱，弹簧螺钉，自锁螺母，定位支撑柱，定位销，支撑卡柱弹簧销，组合螺钉，空心铆钉，以及各种塑料压铆类紧固件等！

Moreover, the author analyzed and researched dynamic load of the needle valve spring by adopting the method of characteristic line and proposed to design the needle valve spring using its dynamic load.

运用特征线法研究和分析针阀弹簧的动力负荷，推导出采用动载法设计针阀弹簧的方法，从而提高设计的稳健性。高压共轨喷油器精度和技术要求高，加工难度大。

Thermal expansion valve superheat from the opening degree of superheat and the effective composition of overheating, open the superheat and spring preload related to the effective superheat and the spring strength and the valve needle stroke.

热力膨胀阀的过热度由开启过热度和有效过热度组成，开启过热度与弹簧的预紧力有关，有效过热度与弹簧的强度及阀针的行程有关。

Thermal expansion valve superheat from the opening degree of superheat and the effective composition of overheating open the superheat and spring preload related to the effective superheat and the spring strength and the valve needle stroke.

热力膨帐阀的过热度由开启过热度和有效过热度组成，开启过热度与弹簧的预紧力有关，有效过热度与弹簧的强度及阀针的行程有关。

Objective To evaluate the diagnostic accuracy in terms of surface location, the needle, sampling method and the character of lesion. To investigate the complication of CT-guided percutaneous pulmonary biopsy with spring core biopsy needle.

目的 评价CT导引下应用弹簧芯状活检针经皮肺穿刺活检术中CT定位方法、穿刺针的选择、组织取材方法、病变特点等因素对本项检查诊断准确性的影响，探讨CT导引下应用弹簧芯状活检针肺穿刺活检术并发症的发生率、影响因素以及防治措施。

By adopting mechanical driving mode, the machine can be used for perform injection with stable pressure on bone pork, beef and poultry. When the injection needle contacts the bone, the downward movement is stopped by the pneumatic spring to protect the needle. The air chamber pressure of pneumatic spring is adjustable in order to ensure no damage on the bone.

用途采用机械驱动方式可对猪肉、牛肉及禽肉等带骨肉以稳定的压力注射，注射针在遇到骨头等硬物后可自动在气弹簧的作用下停止向下运行，保护注射针，气弹簧的气室压力可调节，保证对原料中骨结构不破坏。

Air spring is one of the key components of air suspension and widly used in the commercial vehicles and high speed passenger vehicles.

中文摘要：空气弹簧是空气悬架的关键部件之一，空气弹簧在载重货运车辆和高速客车中应用越来越广泛。

It can be mounted in any position by making simple adjustments to the loading on the spring, the governor speed can easily be altered.

弹簧可装在任何位置上。对于作用在弹簧上的负载进行简易的调节，就可以轻易改变调速器的速度。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。