您要查找的是不是:
- Waterproof and breathable polymer film and coatings are permeable to water vapour molecules and not to permit water droplets to penetrate through them. 防水可呼吸性是指聚合物薄膜及涂層不允許水滴透過(guò),同時(shí)卻要保證水蒸汽分子自由透過(guò),達到防水可呼吸的目的。
- A cloud is a condensation of water vapour. 云是由水蒸汽凝縮而成的。
- A cloud is a mass of vapour in the sky. 云是天空中的水汽團。
- Water can be changed into vapour when heated. 水被加熱時(shí),可以變成水蒸汽。
- A molecule that can combine with others to form a polymer. 單體可以與其他分子結合形成聚合物的分子
- It can change water into vapour. 它能把水變成蒸汽。
- An oxide containing three oxygen atoms per molecule. 三氧化物每個(gè)分子中含有三個(gè)氧原子的氧化物
- The hot vapour spouted from a rusted pipe. 熱蒸汽從一個(gè)生了銹的管子里噴了出來(lái)。
- Then a brown vapour is given off. 這時(shí)會(huì )放出一種棕色的氣體。
- A molecule of water consists of two atoms of hydrogen and one atom of oxygen. 水分子含有兩個(gè)氫原子和一個(gè)氧原子。
- He sniffed the vapour up (through his nose). 他(用鼻子)吸入蒸氣.
- Closest to the functional group of atoms in an organic molecule. 阿爾法位的,第一位的在有機分子中離功能原子基團最近的
- Petrol forms vapour above a certain temperature. 高于一定的溫度汽油就形成蒸氣。
- When heated,water change into vapour. 給水加熱時(shí),它會(huì )變成蒸氣。
- Heated, the water turns to vapour. 加熱時(shí),水會(huì )變成蒸汽。
- A film or layer of a compound one molecule thick. 單分子層一分子厚度化合物的膜或層
- Containing three atoms per molecule. 三原子的三代的每個(gè)分子中包含有三個(gè)原子的
- Glucose has a simple sugar molecule. 葡萄糖含有單糖分子。
- Each sugar molecule has the properties of sugar. 每個(gè)糖分子都具有糖的性質(zhì)。
- When heated, water changes into vapour. 給水加熱時(shí),它會(huì )變成蒸氣。