| 1. | No optical counterpart has been observed .
没有观测到光学对应体。 |
| 2. | They were observing the "check-in" process .
他们正在观看“入场”过程。 |
| 3. | A degree of collective immunity may be observed .
可见到一定程度的群体免疫力。 |
| 4. | Oliguria is observed after hydration .
输液后仍然少尿。 |
| 5. | Clearly defined centrosomes have been observed in some cells .
在一些细胞中观察到界限清楚的中心体。 |
| 6. | It may be observed that this bifurcation phenomenon is somewhat abstract .
可以发现，分支现象有点抽象。 |
| 7. | Plant cover has been observed to influence pesticide persistence .
人们观察到植物覆盖对农药持久性有影响。 |
| 8. | Seeds, being relatively large, can be observed and trapped easily .
种子是比较大的，能被看到并且容易采集。 |
| 9. | Differences between natural and dewaxed cotton are observed .
对原棉和去除蜡质的棉纤维间的差异进行了观察。 |
| 10. | Substantial changes of level in wells have been observed following earthquakes .
地震后井水水位有显著变化。 |
