This can make heavy atom derivatization in the presence of reducing agents, difficult and frustrating.

这就使得用重金属原子作同晶置换法遇到了麻烦。

youdao

Electron withdrawing groups can enhance the limiting effect for this kind of complexes, but the effect of heavy atom ACTS opposite role.

吸电子基团能增强该类配合物对皮秒激光的限幅效果，而重原子效应则起相反的作用。

youdao

In this paper a new procedure is proposed to make full use of the heavy atom information and make the combination between heavy atom method and direct method more efficient.

本文提出一种利用重原子信息的新方法。这个方法能够更充分地利用重原子信息，并能使重原子法同直接法更有效地结合起来。

youdao

By tuning the laser very precisely to the frequency of one particular sort of bond (such as that with a heavy carbon atom at one end), a molecule containing that bond can be shaken up.

ECONOMIST: Diamonds

Light ones are more easily deflected than heavy ones, so the two forms of carbon get separated, and when each atom reaches a detector at its expected arrival spot, it can be counted.

ECONOMIST: Monitor