您要查找的是不是：
- A kind of ripple-compensated circuit is used in the photo multiplier tube(PMT) DC high-voltage switch mode power supply and the output ripples are greatly reduced. 采用一種紋波補償電路使光電倍增管(PMT)直流高壓開(kāi)關(guān)電源的輸出紋波幅度大大降低,同時(shí)對低頻電壓漂移也有很好的補償效果。
- Determination of the luminescence intensity space distribution from a plastic film scintillator is useful for finding optimal position to install a PMT(photo multiplier tube). 塑料薄膜閃爍體在輻射作用下發(fā)射熒光的空間分布對于設計和優(yōu)化閃爍探測器結構,提高測量的信噪比具有重要意義。
- photo multiplier with high quantum efficiency 高效率光電倍增管
- Research of the photo multiplier tube in nuclear logging 核測井中光電倍增管的應用研究
- Keep the sun behind you when you take a photo. 拍照時(shí)要讓太陽(yáng)留在你的身后。
- He showed me a photo of a family group. 他給我看一張合家歡的照片。
- Many a time have we come across this same photo. 我們多次都見(jiàn)到過(guò)這同一張照片。
- He adjusted the shutter before taking a photo. 在照相前，他調整了快門(mén)。
- The woman on the photo is my paternal grandmother. 照片上的這個(gè)婦人是我祖母。
- He took a lot of photo last sunday, and so do I. 他上星期照了許多照片，我也一樣。
- The photo made him quite attractive. 照片把他拍得相當英俊。
- That photo is a good likeness of David. 戴維那張相片照得很像。
- He hit upon a photo taken ten years ago. 他偶然發(fā)現一張十年前拍的照片。
- The photo shows her dressed in black. 在這張照片里，她穿著(zhù)黑衣服。
- I got her in focus before I took the photo. 我在拍攝前先用鏡頭把她對清楚。
- The photo has faded beyond recognition. 相片已經(jīng)模糊，不能辨認。
- Poems of Mao Tsetung(PMT)are abundant in numerals. 善用數字是毛澤東詩(shī)詞的一個(gè)顯著(zhù)特點(diǎn)。
- The multiplier for the estimate of man-hour costs to take care of overheads and fringe benefits. 工時(shí)成本估計的乘數及以滿(mǎn)足福利費和經(jīng)營(yíng)管理費的需要。
- The baby wouldn't stay put long enough for the photo to be taken. 這孩子總動(dòng)換，拍不了照片。
- The photographer took a photo of a herd of elephants. 這位攝影師拍了一張象群的照片。
