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- It is also widely available, cheap, resistant to RFI, and quite remarkably noise free, since it has low output dV/dT and does not generate a supply current pulse. 優(yōu)點(diǎn)是應用廣泛、價(jià)格便宜、抗射頻干擾（RFI），而且噪聲相當低（得益于輸出壓擺率低，不會(huì )產(chǎn)生開(kāi)關(guān)電流）。
- The PRT system would be available all of the time, would be electrically-powered and essentially pollution and noise free. 另外值得注意的是，選擇題（包括單選和多選）的出題頻率進(jìn)一步提高。
- A new approach using scalogram of wavelet transform for travelling wave transient signal detection, under noise free condition or noise condition separately, was described. 摘要介紹小波變換定義、性質(zhì)和時(shí)間尺度分析，研究小波變換的尺度譜檢測無(wú)噪聲和有噪聲條件下的行波暫態(tài)信號的能力。
- The Alps potentiometers for volume control are marvelously smooth and noise free, allowing a very gradual increase in sound levels even in the 7 - 10 o'clock region. 音量控制電位的阿爾卑斯山是不平凡的順利和無(wú)噪音，使聲音的水平在逐步提高非常即使在7-10點(diǎn)區域。
- To illustrate the influence of different regularization operator on the inversion of water content distribution from surface nuclear magnetic resonance (NMR) signal, synthetic data of noise free and contaminated have been investigated. 摘要不同的模型約束對基于正則化反演技術(shù)的地面核磁共振測深數據反演影響很大。
- By choosing appropriate parameters of the noise and the system, the OAG of the system can be larger than one, i. e., the OAG of the noisy system can be larger than that of the noise free system. 選擇適當的參數，系統輸出幅度增益可以大于1，即有噪聲時(shí)的系統輸出平均幅度可以大于無(wú)噪聲時(shí)的輸出幅度增益。
- Based on the principle of modulus maximum, a new approach using scalogram of wavelet transform for transient signal, under noise free condition or noise condition separately, is described. 針對光滑瞬態(tài)信號的特點(diǎn)，研究了信號在高斯連續小波變換下具有的時(shí)頻特性，提出了一種適用于檢測光滑瞬態(tài)信號波至點(diǎn)的新方法，通過(guò)建立的檢測函數能精確定位信號或含噪信號的波至點(diǎn)。
- The dentist's drill made a lot of noise. 牙鉆發(fā)出很大的噪音。
- DMZ low density solid free drilling fluid is mainly comprised of water, high molecular polymer and natural high molecular compound. 無(wú)固相聚合物鉆井液是一種抑制性、防塌性能力強的鉆井液體系。
- Reading occupies most of my free time. 閱讀占去了我大部分的閑暇時(shí)間。
- The noise of the drill pounded at my ears. I thought I would lose my hearing. 鉆機的噪音隆隆震耳。我想我的耳朵都要震聾了。
- A loud noise from the street diverted my attention. 街上一陣喧鬧聲轉移了我的注意力。
- The crew remained free from scurvy. 那些船員仍然沒(méi)有患壞血病之虞。
- The noise awoke her from her revery. 這聲音把我她從沉思中驚醒。
- That noise is driving me frantic. 那種噪音真要把我弄瘋了。
- He's a fervent believer in free speech. 他是言論自由的強烈信仰者。
- The thick walls deadened the noise from the street. 這道厚墻隔絕了街上的噪音。
- A noise abatement notice is served on the club. 向俱樂(lè )部發(fā)停止大聲喧嘩的通知。
- She picked up a new magazine with her free hand. 她用空著(zhù)的一只手拿起一本新雜志。
- The noise of traffic grows louder and louder. 交通的噪音變得愈來(lái)愈大。
