系由 meaning in English
public key infrastructure
Examples
- Cellophane is made of long, fibrous molecules .
玻璃纸系由长形纤维分子组成。 - These stresses arise from the exothermic nature of the reaction during gelatin and cure .
这种残余应力系由凝胶和固化期间化学反应能放出的热引起的。 - In the burst of emigration from ireland in the 1840s, the potato famine provided the push .
十九世纪四十年代爱尔兰突然掀起向国外移民的高潮，系由马铃薯的歉收所引起。 - The suspended sediment of natural streams is usually made up of grains with a broad spectrum of sizes and fall velocities .
天然河流的悬沙，通常系由各种大小尺寸和沉速的粒子组成。 - The accident can be traced to various causes
经追查可发现这起意外事件系由种种原因造成的。