Tetanus toxin can also be found in the serum using a bioassay.

物测定法可在血清中现破伤风毒素。

And then we used these substances to create bioassays that enabled us to discover the first substances that stopped cancer blood vessels and to help stop cancer.

然后我们用这些物质来创建物检测，使我们能够现第一种阻止肿瘤血管的物质，进而帮助阻止肿瘤长。

But, throughout the 20th century, other methods were explored: the AZ Pregnancy Reaction Test popped up in 1928 and was the first of several " bioassays" or animal-based tests.

但是，整个20世纪，人们都在探索其他的方法：AZ反应测试出现于1928年，是多种“物鉴定”或基于动物进行的测试中的第一种。

Today's tests still work by measuring HCG. But, throughout the 20th century, other methods were explored; the AZ Pregnancy Reaction Test popped up in 1928 and was the first of several " bioassays" or animal-based tests.

今天的测试仍然通过测量 HCG 起作用。 但是，在整个 20 世纪，人们探索了其他方法；AZ 反应测试于 1928 年出现， 是多项“物测定” 或基于动物的测试中的第一项。