Signal persons shall be provided at junctions to all federal and state roads .

应在所有通往联邦和州公路的路口配备信号员。

The moving scene happened at one of the city 's busiest bus junctions .

这感人的一幕发生在城市一个及其繁忙的公路交叉处。

Tight junctions were ignored , and so tight no tree may !

种紧无果结的树，等紧无可能的事！

Gap junctions serve as pathways of intercellular communication .

间隙连接是细胞间交流的途径。

Following adhesion , the leukocytes move slightly along the endothelial surface and insert large pseudopods into the junctions between the endothelial cells .

白细胞粘附之后，沿着内皮细胞表面缓慢移动，先伸出较大的伪足插入内皮细胞之间连接处。