英语词汇“porthole glass”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	porthole glass
释义	porthole glass 观察口玻璃
随便看	tangent shearing stress tangent slope tangent space tangent sphere tangent-sphere method tangent/spiral point tangent spoke tangent-spoke wheel tangent spoke wheel tangent stiffness tangent stiffness matrix tangent subbundle tangent surface tangent tensor tangent to tangent to curve tangentto helix tangent to periphery tangent tospiral tangent tower tangent track tangent tube construction tangent-tube wall tangent tube wall tangent vector 桂华秋皎洁，兰叶春葳蕤。桂可食，故伐之；漆可用，故割之。桂叶双眉久不描，残妆和泪污红绡。长门尽日无梳洗，何必珍珠慰寂寥。桂吐两三枝，兰开四五叶。桂吐两三枝，兰开四五叶。是时君不归，春风徒笑妾。桂子月中落，云香云外飘桂子月中落，天香云外飘。桂子落秋月，荷花羞玉颜。桂宫柏寝，象箸玉杯桂密岩花白，梨疏林叶红六体六六判六分儀六十六十六十六部六十路六国六地蔵六字のみょうごう