| 1. | In the absence of actual data no reliance can be placed on such figures .
这样的数据不可靠。 |
| 2. | The velocity of the center of mass is constant in the absence of external forces .
在无外力时，质心的速度是常量。 |
| 3. | in the absence of sophistication the missile will roll through 340°.
不完善时导弹应滚动340 |
| 4. | The species has a long lifetime in the absence of etchable material .
当能刻蚀的材料不存在时，这些物种就具有较长的寿命。 |
| 5. | In the absence of an obstructive lesion of the urinary tract, this illness is self-limited .
若无尿路梗阻，则本病具有自限性。 |
| 6. | The vice chairman is the chief executive officer in the absence of the chairman .
副董事长在董事长不在时代理最高行政负责人职务。 |
| 7. | Under this assertion, development cannot take place in the absence of social stability .
这个意见认为，没有社会安定，发展就无法进行。 |
| 8. | Vesicles cannot be formed in the absence of newly-synthesized lysosomal proteins .
如果没有新合成的溶酶体蛋白质，就没有溶酶体囊泡形成。 |
| 9. | In the absence of frictional energy dissipation, input work and output work are equal .
没有摩擦力所引起的能量消耗时，输入功等于输出功。 |
| 10. | Consider the magnetization of a single core in the absence of an ambient field now .
现在，在研究一下在没有背景场的情况下，单个磁芯的磁化强度。 |
