防晒霜应每隔一小时再抹一次。Sunblock should be reapplied every hour.不论何时只要有一点可能暴露在阳光下，我就会用防晒霜。I use a sunscreen whenever there is even a remote possibility that I will be in the sun.即使黑皮肤的女性也应该涂抹防晒霜。Even dark-skinned women should use ...
In Boolean , this will almost always return nothing.在布尔逻辑中, 基本上不可能有返回结果.A Boolean ring is absolutely flat.布尔环是绝对平坦的.We have a symbology denoting Boolean variables, and their complements.我们利用象征学来表示布尔变量以及它们的补充.Making Boole...
这个操作叫倒反,用符号i表示.This operation is called inversion and is symbolized i.教科书通常用符号和两个脚标表示剪应力.Textbooks commonly denote shear stresses by the symbol and two subscripts.在本词典中,用符号表示避讳语.In this dictionary the ideogram is used to...