But buckaroos also bail hay, mend fences, and haul trucks out of desert mud holes.除此之外,牛仔还要整理干草 、 修补篱笆及将卡车拖离沙漠中的泥洞.They've torn down wooden fences and broken branches off trees.他们拆掉了木栅栏，并砍去了一些树枝。Police used teargas ...
Ther result shows that the mechanism is probably that the electrostatic field polarizes the catalase solution.研究表明:高压静电场对酶活力的稳定作用很可能是高压静电场使酶及溶液发生极化作用产生的.For particulates, the favored devices are inertial impactors, cyclo...