It is predominantly transmitted through close person - to - person contact , especially via respiratory droplets produced when an infected person coughs or sneezes 它主要透过人与人的近距离接触传播,尤其是通过患者咳嗽或打喷嚏时喷出的飞沫。
It is predominantly transmitted through close person - to - person contact , especially via respiratory droplets produced when an infected person coughs or sneezes 它主要透过人与人的近距离接触传播,尤其是通过患者咳嗽或打喷嚏时喷出的飞沫。
The deep - sea hydrothermal vent environment is one place on earth where life lives off the chemical energy of the planet itself rather than on the energy from the sun 生活在深海热喷口的生物以由热喷口喷出的能源为生,而并不需依靠阳光作为能源。
Knowledge of the impact location allowed us to reconstruct the trajectories and distribution of material ejected from the crater and evaluate the extent of the fires 对撞击地点的了解,让我们重建物体从陨石坑喷出的轨迹与分布,并评估燃烧的程度。
The water curtain nozzle is the water curtain movie necessarynecessary product , shuimutou opens the mouth to be possible to move , blowout shui mucheng semicircle fanghaped 水幕喷头是水幕电影必备的配套产品,水幕头开口度可调,喷出的水幕呈半圆扇形。
Sars is predominantly transmitted through close person - to - person contact , especially via respiratory droplets produced when an infected person coughs or sneezes 沙士主要透过人与人的近距离接触传播,尤其是通过患者咳嗽或打喷嚏时喷出的呼吸道飞沫。
More amazing yet , chemicals in the vent fluid , such as hydrogen sulfide , provide food for a microbial community that is the base of the food chain for vent life 更神奇的是,喷出的矿物质如硫化氢,竟然为这里的微生物群落提供食物,而这些微生物又成为附近生物的食物。
Smoking increases the risk of developing cataract . preliminary studies showed that cadmium and isocyanate in cigarette smoke may cause direct and structural injury to the lens 初步研究显示,吸烟人士喷出的烟雾所含的镉和异氰酸盐可能会对晶状体的组织造成直接的损害。
The gigantic cloud of highly charged particles hurled from the sun posed a threat to high frequency radio communications , satellite navigation systems and television broadcasts 太阳高速喷出的巨大粒子云团对于高频无线电波通讯人造卫星航空系统和电视广播传输都造成了威胁。
Mixing clouds can be found in many other places . further examples are : exhaust from a car ; plume from a power station ; air rising from a cup of hot coffee ; and an approaching cold front 混合雾随处可见,其他例子包括汽车尾喷出的气发电厂的烟羽咖啡升起的烟与及冷锋来临。