In plant cells the principal precursor of alanine , as well as leucine and valine, is pyruvate.植树细胞中丙氨酸和亮氨酸 、 缬氨酸的主要前体是丙酮酸.Alanine aminotransferase ( ALT ) was checked post - treatment 1 day , 7 days and 14 days.实验动物分别于治...
高楼林立中的静电干扰是引发大楼病综合征的原因之一。Built-up static contributes to sick building syndrome.他们被迫听白噪音，类似于你在调电台时听到的那种静电噪音。They were made to listen to white noise, such as static of the sort you might pick up between radio stations.控制颗粒...
This is called a rarefaction and is represented by widely spaced dots.这个区域称为稀疏区,并用疏散的小点表示.The classical elementary waves in Riemann solutions include rarefaction wave, shock wave and contact discontinuity.黎曼解涉及的经典基本波包括疏散...