The experimental results showed that good beam quality was obtained with a hybrid unstable resonator in which useful output energy was obtained by transmission through a partially transparent mirror.

实验结果表明对于高增益的准分子激光，采用部份透射镜作耦合输出的混合型非稳腔可以使准分子激光的发散角减小到毫弧度量级。

youdao

It could be useful to denote things such as the sun's mass (2.2 hellatons) and energy output (approximately 0.4 hellawatts).

ECONOMIST: Scientists measure a few yoctonewtons for the first time