各类有机磷化合物的电子结构与成键。
The electronic structure and bonding of various phosphorus compounds.
得出各类剪力键极限承载力统一计算公式。
The uniform calculation formula for each studied shear connector type is established.
该系列锁提供各类无键门禁，包括密码，感应器或带有单个或多个密码选择的双证门禁。
Locks in the series offer many kinds of keyless access control, including PIN, proximity, or dual-credential access with the option of single or multiple access codes.
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