Continuous application of this drug may lead to sensitization.连续用此药可导致敏化作用。Results The isobutyl chitosan has no cytotoxicity, sensitization, irritation and systemic acute toxicity.结果:异丁基壳聚糖无细胞毒性 、 无致敏 、 刺激及全身毒性作用.When th...
Khalil heard the thunder of an avalanche.哈利勒听到了雪崩传来的轰隆声。alpine villages destroyed in an avalanche在一场雪崩中被摧毁的高山村庄They were killed by an avalanche in the Swiss Alps.他们在瑞士阿尔卑斯山的一次雪崩中罹难....
Marconi tied several antennas to kites.马可尼在风筝上系了几根天线.Radio astronomy today is armed with the largest antennas in the world.射电天文学拥有世界上最大的天线.The jet has 57 antennas for its huge array of electronic gear. Normal is 17.机上装有五...