脚架

Make sure the tripod is stable.

一定要把放稳。

Seat the telescope on the tripod.

把望远镜安装在上。

S-the telescope on the tripod.

把望远镜安到上。

Abstract : A new colorimetric chemosensor 1 based on a tripodal benzaldehydic-phenylhydrazone selectively sensing acetate ion has been synthesized.

摘要 ： 本文合成了一个新的基于苯甲醛苯腙的能够选择地测醋酸根离子的比色化学 1 。

Consumer can combine a part joltily with the hand when the choose and buy, especially the joint such as mensal horse, examine have without shake a phenomenon.

消费者在选购时可用手摇动结合部件，尤其是餐桌等连接处，查看有无松动现象。