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| 1. | The typical catapult was not a monster, but an easily portable affair, more powerful than the bow and |
| 普通的石弩并不是庞然大物，而是一种便携式物件，它比弓更有威力而技巧要求相对较低。 |
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| 2. | Easily portable backpack vacuum cleaner with patented carrier frame for convenient and fatigue-free operation |
| 轻巧的背负式真空吸尘器，其独特的机身结构设计获得专利,使用方便，操作时不易感到疲劳,常用于清洁狭窄的区域，如脚手架、子、索，以及影剧院、厢、士和机舱内的狭窄通道中。 |
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| 3. | There is a need for a highly sensitive system that is at the same time compact and easily portable. |
| 需要高灵敏度系统，而且还应该坚实和便于携带。 |
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| 4. | Ideal money must be easily portable; |
| 理想的货币一定要易于携带。 |
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| 5. | not portable; not easily moved or transported. |
| 不便携的；不易移动或传输的。 |
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