At this rate , the fourth dimension is bidirectional .

这样看来，第四维度是具有双向性的。

The tunnel is designed to be 9km long with bidirectional four lanes .

这条隧道设计为双道4线9公里长。

Notwithstanding the likely bidirectional nature of the findings , the authors suggest that their study has clinical implications-namely that identification and treatment of depression in midlife women may ameliorate the experience or severity of menopausal complaints .

尽管该发现可能有两重实质，作者表示他们的研究具有临床意义即是说中年妇女的抑郁识别与治疗可能改善主诉绝经期症状的严重度和感受。

Bidirectional test of the easement curves .

缓和曲线的双向测设法。

Channels can be unidirectional or bidirectional .

通道可以是单向的或双向的。