围心的

Through transformation of parameters, the meshing design system among Hy-Vo silent chain, sprocket and hob was built up based on the research of the pitch increment and the equivalent apothem increment of the effects on the common normal line length when the Hy-Vo silent chain was wrapped around and located on the sprocket, with the proper meshing conditions of Hy-Vo silent chain and sprocket into consideration. The design method of common normal line length was put forward that can be used when the value of the sprocket pressure angle was equal or unequal to the value of the Hy-Vo chain plate pressure angle.

在分析Hy-Vo齿形链链节围在链轮轮齿上定位时其节距增量和当量边心距增量对链轮公法线长度影响的基础上，根据Hy-Vo齿形链与链轮的正确啮合条件，通过参数变化，建立了Hy-Vo齿形链－链轮－滚刀三者之间的啮合设计体系，提出了既适用于链板齿形角等于链轮压力角情况，也适用于链板齿形角不等于链轮压力角情况的Hy-Vo齿形链链轮公法线长度的计算方法。

Sandbag dike construction technics is wieldy used for waterway training and land reclamation. But this technics is mainly applied to shallow water projects, which is not sufficient for deep-water yet so as no successful project at present.

袋装砂筑堤技术及工艺可用于航道整治工程，也可用于围海造陆的围堤工程，在我国自八十年代后期以来发展较快，但其应用仅局限于浅水区，在深水区填筑袋装砂堤心尚无成熟的工艺也无成功的工程实例。

Mine eye hath played the painter and hath stelled Thy beauth's form in table of my heart.

我的眼睛扮演了画师，把你美丽的形象刻画在握的心版上；围在四周的画框是我的躯体，也是透视法，高明画师的专长。

Before him he held his shield of hammered bronze, that the smith had beaten so fair and round, and had lined with ox hides which he had made fast with rivets of gold all round the shield; this he held in front of him, and brandishing his two spears came on like some lion of the wilderness, who has been long famished for want of meat and will dare break even into a well-fenced homestead to try and get at the sheep.

他迅速移过溜圆的战后，挡住前身，盾面青铜，煅砸精致，铜匠手工锤制的佳品，里面严严实实地垫着几层牛皮，用金钉齐齐地铆在盾沿上。挺着这面战盾，摇晃着两枝枪矛，他大步走上前去，像一头山地哺育的狮子，久不食肉，受高傲的狮心怂恿，试图闻人一个围合坚固的圈栏，撕食肥羊。

The study was designed to elucidate the influence of cardiac vagus activity on cardiac output and end-tidal CO_2 tension(ETCO_2)and their interrelationship during openheart surgery under cardio-pulmonary beypass.

本研究旨在探讨体外循环围术期心脏迷走神经活动的变化对心排量和呼气末CO_2（ETCO_2）的影响，以及三者之间的相互关系；并进一步阐明迷走神经拮抗剂—东茛菪碱的心肌保护作用。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。