向下

When the speed of piton changes from several positive meters per second to negative during short time , a huge transient impacting force acts on the piston. The force spreads in the piston with stress wave. Converging force will become at some sections, which can destroy the piston.

从风动冲击器的工作原理可以得知，风动冲击器的活塞在高压气流的推动下，反复冲击钻头，冲击时活塞的速度由向下的几米每秒在极短时间内反弹为向上的速度，因而对活塞产生一个极大的瞬时冲击力，该力以应力波的形式在活塞内传播，就会在活塞的某些断面产生应力集中，造成活塞的破坏。

Onboard TV shots showed the upper profile bending downwards at speed, opening up a gap between the wing element and the nose cone, prompting many to question whether this constituted a moveable - and hence illegal - aerodynamic device.

车载电视镜头的画面显示，上层风翼在高速状态下向下弯曲，风翼和鼻锥之间就会出现了一个缺口，因此很多人都怀疑，这是不是已经构成了可移动的空气动力学部件，因此属于违规的。

Gradually narrowing toward the tip, they are shaped somewhat like a vine leaf and are lightly feathered.

脑袋的轮廓与口吻的轮廓略微有点不平行，但是不很向下倾斜，造成&下斜脸&的倾向。

In a cam control system, scraping blade tooth is removed from the paper and carry it on top of the turning point downward movement and falling after 15 mm.

在一个由凸轮把持的编制洋，刮墨刀条不兵从叼纸牙不下不圆的转折不面不休向下运不静，并在回升15毫米后停下来。

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。

"Any of eight species of shorebirds having a sickle-shaped bill that curves downward at the tip, a streaked, gray or brown body, and a long neck and legs."

鹬科杓鹬属八种中型或大型滨鸟。嘴弧形向下曲或镰刀形，末端下弯；灰或褐色，有条纹；颈长，腿长。

"Any of eight species of shorebirds having a sickle-shaped bill that curves downward at the tip, a streaked, gray or brown body, and a long neck and leg s."

鹬科杓鹬属八种中型或大型滨鸟。嘴弧形向下曲或镰刀形，末端下弯；灰或褐色，有条纹；颈长，腿长。

And continues moving down the rope with the ring until it reaches the bottom end of the rope where the ring is taken off the rope.

然后接着抓住圆环，右手连同环向下移动直到从绳子下端脱出为止。圆环放入衣服口袋。

One from the growth of stalactite-down, bottom-up, said the growth of stalagmites.

其中由上向下生长的石钟乳，由下向上生长的称石笋。

With Brazil's GDP also down a bit, the share of emerging economies in world output (including Asia's newly industrialising economies) has been cut to 46% in 2005, compared with over 50% on the old numbers.

此外，巴西GDP也向下做了微调。这样一来新兴经济体2005年占世界总产出的比重（包括亚洲新近工业化的经济）就从旧方法下的50%调低到46%。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。