植物传播孢子的方法各不相同。Plants have different mechanisms of dispersal for their spores.蕨类植物、苔藓和真菌通过孢子传播蔓生。Ferns, mosses and fungi spread by means of spores.感染病毒的蚊子叮咬人之后，孢子便被注入血液中。When an infected mosquito bites a human, spores are...
Brittleness is often a result of alloying.脆性往往是合金化的一种结果.The mechanism, equipments and feature of mechanical alloying technology were introduced briefly.综述了机械合金化的原理 、 设备和特性及其对材料的影响.Innovative laser processing ( surface ha...
We found powdered sugar on the odometer cable.我们在里程表的电线上找到糖粉.I checked the odometer. He was right. Four miles exactly. I could have sworn it was 20.我看了一下里程计,他说得没错,确实是4英里,我还坚信是20英里呢。In each taxi there must be an odometer....