Weisman ' s intriguing thought experiment is to ask what would happen if the rest of the earth was similarly evacuated ? not by a nuclear holocaust or natural disaster , but by whisking people off in spaceships , or killing them with a virus that spares the rest of the biosphere 魏斯曼发人深省的思想经验是要问：如果地球其他地方同样净空会发生什麽事，但人类净空并非靠核子浩劫或天然灾难，而是借助太空船把人飞驰电掣般送走，或用一种病毒把人杀光，但保留生物圈其他部分。
Particle - carrying air enters the bag filter via the inlet , passing through a stopper ; at this point , heavier powders settle first , while lighter powders attach to the filter evenly ; the plc then controls the electromagnetic valve to trigger the membrane valve for input of pressurized air , which passes the venturi tube to flush the filter by shaking off powders into the collection chute , whereas the clean air passes through the filter to be released by the fan 控制电磁阀导引膜片阀输入压缩空气，使其通过文氏管对滤袋进行喷洗，使得附著于滤袋四周之粉尘震落于集灰槽内，而乾净空气则穿透滤袋藉由送风机排出。
The mission - oriented mobile robot has the adaptability of terrain , sensors and payload with the scope of 20 kilograms . different prototypes with diversified wheelbase , wheel stance , clearance , stability margin and altitude of center of gravity can be achieved by reconfiguration . a wheel with high trafficability on sand terrain can be achieved by reconfiguration with bionic features 机器人的重构特性可使之变换出具有不同轴距、轮距、重心高度、净空和稳定裕量的机器人构型以适应不同导航任务;而其具有仿生特性的轮子,可使机器人具有沙地通过能力。
The incident wave height h1 / 3 is in the range from 0 . 1m to 0 . 25m , and the peak period tp in the range from 1 . 0s to 2 . 0s . the ratio of s / h1 / 3 , which refers to the subface level of wharf deck ( s ) to the incident wave height ( h1 / 3 ) , is between - 0 . 1 and 0 . 7 . three different shore connecting types : open - piled , permeable slope with armored 1ayer of dolosse b locks and impermeable slope with armored layer of concrete plate , are set in the experiment for the research on the effects of boundary condition with different shore connecting types on the wave impact 本文的物理模型试验在大连理工大学海岸和近海工程国家重点实验室的大波流水槽中进行，试验中选用的随机波靶谱为改进的jonswap谱，入射波波高h _ ( 1 / 3 )范围为0 . 1m 0 . 25m ，谱峰周期t _ p范围为1 . 0s 2 . 0s ，码头面板的相对净空(码头面板底面距离静水面的距离s与入射波波高h _ ( 1 / 3 )的比值)范围为- 0 . 1 0 . 7 ，其中s / h _ ( 1 / 3 )为负值时表示码头面板底面位于静水面以下。
It was a life filled with pure fresh air , lots of exercise , warm family life , mineral rich water , a variety of fresh foods changing with the seasons , sleeping and rising with the sun , and relatively no stress as the average person had to work only one day a week to get enough food 那是一种充满乾净空气、许多锻炼、温暖家庭气氛、富含矿物质的饮水与随季节变换的多种新鲜食物的生活，人们随著太阳而作息，也不会有过多的压力压力因为他们一个星期只需要工作一天就能够得到充足的食物。
