上下摆动

At last he dropped into a kind of a dose, a stupid sort of sleep, and began to nod over the fire, so I ran and got a blanket and wrapped him in it, and got him to lie down upon the press bedstead in the room under this.

最后他昏昏沉沉地打盹儿了，那是一种傻乎乎的睡眠，对着炉火上下摆动着脑袋，所以我就去拿一条毯子把他裹起来，弄他在房间里的一张折叠床上躺下。

The bird bobbed its head up and down.

鸟上下摆动他的头

He bobbed up and down like a little red cherry, singing

它像一个小红樱桃那样上下摆动，唱著

To sway,move up and down,or droop,as flowers in the wind.

上下摆动弯曲上下来回移动或垂下，如在风中的花朵

The dorsoventral movement of the tail produces the thrust, and bending of the anterior body in the horizontal plane enables turning maneuvers.

用一个串联的、多关节的上下摆动机构来实现背腹式运动，用左右摆动的转弯机构和两自由度运动的鳍肢机构来实现机动运动。

Culms erect, 10–40 cm tall, 1–1.5 mm in diam., scabrid below panicle, 2–3-noded.

秆直立，10-40厘米高，1-1.5毫米直径，在圆锥花序下面粗糙，2-3上下摆动。

As you release the striker so it retracts back to the reel, your right hand shakes up and down as if in pain from the apparent shock.

当你两次敲击回车键时则有中电之感，同时你的右手表现出在疼痛中上下摆动。

The front part is used for adjusting the left and right sides of the drawer door panels, the back part is used for adjusting the up and down of the door panels and the hole in the middle is used for removing the jointers.

首先把前接码插入抽帮里面，侧面有三个调整件，前面一个用于调整抽屉门板左右摆动；后面一个用于调整门板上下摆动，中间的孔位用于拆卸前接码。

Firstly, let us install the jointers in the drawer frame. There are three adjusting parts on the sides. The front part is used for adjusting the left and right sides of the drawer door panels, the back part is used for adjusting the up and down of the door panels and the hole in the middle is used for removing the jointers.

首先把前接码插入抽帮里面，侧面有三个调整件，前面一个用于调整抽屉门板左右摆动；后面一个用于调整门板上下摆动，中间的孔位用于拆卸前接码。

Firstly, let us install the jointers in the drawer frame. There are three adjusting parts on the sides. The front part is used for adjusting the left and right sides of the drawer door panels, the back part is used for adjusting the up and down of the door panels and the hole in the middle is used forremoving the jointers.

首先把前接码插入抽帮里面，侧面有三个调整件，前面一个用于调整抽屉门板左右摆动；后面一个用于调整门板上下摆动，中间的孔位用于拆卸前接码。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐