During a vacuum evacuation of a chamber, the presence of water in the chamber can be detected by monitoring the pressure level in the chamber. In the absence of water, the pressure will decrease continuously and smoothly. If water is present, the pressure will rise slightly one or more times...
in a vacuum, and exclusion of water lagerfaehige organopolysiloxanformmassen and methods for their manufactureFREDERIC CEYZERIAT LOUIS
试题来源: 解析 C。本题考查物理常识及条件状语。在海平面的标准大气压下,水的沸点是 100 摄氏度,C 选项“at sea level”符合。A 选项“under any condition”任何条件下,太绝对。B 选项“only in a vacuum”只在真空中,不符合。D 选项“in the mountains”在山里,条件不对。
a vacuum 空盒气压计; 无液气压计. anesthesia (US) = anaesthesia, anaesthetic. anesthetic (US) = anaesthesia, anaesthetic. anew / E5nju:; ?@ E5nu:; E`nu/ adv (usu rhet 通常作修辞) in a new or different way; again 重新; 再: Our efforts must begin anew. 我们得从头再来. angel / ...
百度试题 结果1 题目In a vacuum boiling evaporator, the fresh water generated is pumped out by ___. A. a brine pump B. an air ejector C. a feed water pump D. a condensate pump 相关知识点: 试题来源: 解析 D
百度试题 结果1 题目In a vacuum boiling evaporator, the fresh water generated is pumped out by ().a brine pump an air ejector a feed water pump a condensate pum 相关知识点: 试题来源: 解析 D
a vacuum pressure of 6 inches of water 这是用于测量较低压强的一种表达方式;1 inH2O = 248.84 帕斯卡 ( 60° F 或 15.56°C)6 inH2O = 1493.04 帕
A: Improve the structure design from the suction to the impeller of the centrifugal pump;Adopt double stage suction impeller and use anti-cavitation material;Q:What is the function of rubber ball in water ring vacuum pump?A: Rubber ball in water ring vacuum pump, the co...
SK series liquid ring vacuum pump and compressor use water as sealant,so it can suction air,steam,gas that contains much water,and powder gas without granule. It's maily used in low/rough vacuum degree and big capacity area,such as vacuum drying,vacuum concentration,vacuum evapora...
optical constants in the vacuum ultra violet wavelength region between 80 and 140 nm: a reflectance versus thickness method and its application to ZnSe," ... Bridou,F.,Cuniot-Ponsard,... - 《Optics Communications》 被引量: 15发表: 2007年 Optical constants of V1-xWxO2 thermochromic films...