1. Containment is usually defined as that system whose functional responsibility is to prevent the release of radioactive fission products to the atmosphere.
1.安全殼的主要功能就是為了防止放射性裂變產(chǎn)物釋放到大氣中去。
2. The containment also provides biological shielding during not only normal operation but also the event of a loss of coolant accident.
2.同時，在正常運行和失水事故時，安全殼提供生物屏蔽。
3. The containment structure serves to house the reactor system equipment, provide foundations for that equipment, permit environment control for the equipment within it and provide a service area for maintenance.
3.安全殼作為一個建筑物，用于容納反應(yīng)堆各系統(tǒng)的設(shè)備、為各設(shè)備創(chuàng)造合適環(huán)境和提供檢修平臺。
4. A carbon steel liner is utilized to provide a leak proof vapor barrier for containment of concrete construction.
4.為防止混凝土結(jié)構(gòu)的安全殼泄露，其內(nèi)部有碳鋼的襯墊。
5. There are three types of PWR containment: large dry containment, subatmospheric containment and ice condenser containment.
5. PWR有3種形式的安全殼：大而干燥的安全殼，負壓型的安全殼和冰凝式安全殼。
6. The containment spray system functions to reduce the containment pressure and airborne fission products in the containment atmosphere following a steam line break or loss of coolant accident.
6.安全殼噴淋系統(tǒng)的功能：在MSLB或LOCA時降低安全殼的壓力和去除大氣中的氣載裂變產(chǎn)物。
7. The containment spray system consists of two pumps, spray ring headers, a spray additive tank, a number of motor operated isolation valves and all necessary piping, instruments etc.
7.安全殼噴淋系統(tǒng)內(nèi)有兩臺噴淋泵，噴嘴，噴淋添加箱，許多安全殼隔離閥和相關(guān)的管道儀表等。
8. Sodium hydroxide is added to the containment spray water to enhance absorption of the airborne fission product iodine and to retain the iodine in the containment sump solution.
8.噴淋液中添加NaOH用于加強吸收氣載放射性產(chǎn)物碘，并將碘保留在地坑的溶液中。
9. The purpose of hydrogen recombiner is to remove hydrogen from the containment by combing hydrogen with oxygen to form water.
9.氫氣復(fù)合器用于去除安全殼中的氫氣，其原理是將氫氣和氧氣結(jié)合生成水。
10. Containment isolation system provides the means of isolating systems that pass through containment penetrations so as to confine any radioactivity that may be released in the containment following an accident to the containment.
10. 安全殼隔離系統(tǒng)主要是在事故工況下將通過安全殼的貫穿件隔離，防止放射性產(chǎn)物逸出。
11. Containment penetrations are designed to ensure that containment leakage does exceed the limit of Technical Specifications.
11. 安全殼貫穿件設(shè)計用于保證安全殼泄漏率低于技術(shù)規(guī)格書的限值。
12. The common limits to the leakage of radioactivity after an accident are between one tenth and four tenths of one percent of containment volume per day and the actual leakage should be verified experimentally prior to operation and periodically there after.
12. 事故中對于放射性泄露的限制一般為每天，每百分之一安全殼體積的1/10到4/10（也就是1/1000~4/1000）。另外在運行前需做安全殼泄露率試驗，并在之后周期性地執(zhí)行。
