若问题涉及化学领域,键级(Bond Order)表示原子间化学键的数量和强度,例如: 计算方法:键级=(成键电子数-反键电子数)/2; 常见示例:氧气(O₂)键级为2,氮气(N₂)键级为3; 意义:键级越高,化学键越稳定,键长越短。 3. 建议核实问题准确性 由于“b2键级”未被广泛定义,建议确认以下内...
bearer bond 无记名债券bearer cable 受力缆绳bearer check 不记名支票bearer cheque 不记名支票bearer depository receipts 无寄名受托保管收据bearer draft 无记名汇票bearer frame 支承框架bearer paper 无记名票据bearer plate 支承板bearer shares 无记名股票bearer stock 无记名股票bearer 搬运工人;持有人;托架、...
免费在线预览全文 ContentsUnit 10Lead-in Stories about true friendship Warm-up QuestionsLead-in“Zhi Yin” (知音之交)Bo Ya and Zhong ZiqiBo Ya was a scholar from Spring and Autumn Period, and he was extraordinarily fond of the zither. One day when he was playing his zither on a boat,...
askDisconnect(); } else if (bondState == BluetoothDevice.BOND_BONDED) { //已保存的情况,直接进行连接操作 metricsFeatureProvider.action(context, SettingsEnums.ACTION_SETTINGS_BLUETOOTH_CONNECT); mCachedDevice.connect(); } else if (bondState == BluetoothDevice.BOND_NONE) { metricsFeatureProvider.a...
order bind,hosts # We have machines with multiple IP addresses. multi on # Check for IP address spoofing. nospoof on 第一项设置首先通过DNS解析IP地址,然后通过hosts文件解析。第二项设置检测是否"/etc/hosts"文件中的主机是否拥有多个IP地址(比如有多个以太口网卡)。第三项设置说明要注意对本机未经许可的...
DefinitionChEBI: Procyanidin B2 is a proanthocyanidin consisting of two molecules of (-)-epicatechin joined by a bond between positions 4 and 8' in a beta-configuration. Procyanidin B2 can be found in Cinchona pubescens (Chinchona, in the rind, bark and cortex), in Cinnamomum verum (Ceylon ...
bid bond 投标保证书;投标保证金bid opening 开标bid 出价bidder 出价者bidding block 投标区块bidding documents 投标文件;招标文件bidding procedure 投标程序bidding round 投标轮次bidding sheet 投标单bidding 出价bidematron 电子束注入分配放射磁控管放大器bidiagonal matrix 两对角线矩阵bidiagonalization 双对角化...
Answer to: Calculate the bond order for each of the following molecules (Hint: first draw a correlation diagram for each). 1. B2 2. C2 3. O2 4...
BC 海底等深图 BC 缓冲计数器 BC 井底油嘴 BC 螺栓分布圆 BC 凝析油桶数 BC 深度导电仪 BC 中心间 bc-joint 纵节理 BCC 字块检验字符 BCD code 二-十进制码 BCD decode counter 二-十进制译码计数器 BCD 二进制编码的十进制 BCD 螺栓圆直径
Clearly, these catabolites retain the interflavan bond. One was identified tentatively as either 6- or 8-hydroxy-procyanidin B2. Thirteen were characterised as having been microbially reduced in at least one of the epicatechin units. Five contained an apparently unmodified epicatechin unit but in at...