据中央气象台消息，今年第4号台风“（）”的中心7月2日早晨5点钟位于日本冲绳县那霸市东南方向约415公里的洋面上，就是北纬23.6度、东经130.6度，中心附近最大风力有9级（23米/秒），中心最低气压990百帕，七级风圈半径100-230公里。
A PPM rating on a printer gives you the speed at which a particular printer can print a page of text in black ink. It does not tell you how quickly the printer can print a page of text and graphics. If the rating on the box says "8 PPM," it means the printer can print eight p...
In chemistry, concentration refers to the amount of a substance in a defined space. Another definition is that concentration is the ratio ofsolutein a solution to eithersolventor totalsolution. Concentration is usually expressed in terms ofmassper unitvolume. However, the solute concentration may al...
What does outgassing mean in science? Outgassing is a concern for any electronic equipment intended for use in high-vacuum environments. It refers tothe release of gas trapped within a solid, such as a high-frequency circuit-board material. ...
What does ppm unit mean? What is an electromagnetic transducer? What is a vibration transducer? What are the units for the Henry's law constant? What is wave function? What is the unit of measurement for a pan balance scale? How are SI units used in the US?
400 ppm – what else is new?PlanetBye
a今天我在公园碰巧遇到一个老朋友 Today I by chance run into an old friend in the park[translate] a李明明天动身去澳大利亚 Li Ming will leave tomorrow Australia[translate] aDoes your security awareness program include the recognition of internal conspiracies, maintaining cargo integrity, and determinin...
(2)What does"common sense"mean? It is what we don't need to think or talk about.(3)请在文中找出与该句意思相近的句子"Because understanding spaces is hard for them." Because it's difficult for them to understand spaces.(4)请将文中划线部分①译为中文。
However, this does not mean that the causes of changes in the past are the same as the causes of changes in the present. In fact, the ice core record shows us that modern climate change is fundamentally different from past climate change....
a8 HQC (100ppm) as a bacteriastat 8 HQC (100ppm)作为bacteriastat[translate] a谢谢你给我的照顾! Thanks you to give my attendance![translate] aYou mean you guys can’t definitely say human-caused climate change is why 135 daily rainfall records were broken along the East Coast during last...