增加了内部控制的难度和复杂性；
The difficulty and complexity of internal control increases;
在商业地产的营销和策划中实施这一策略，依然是具有相当的难度和复杂性的。
But to apply the IMC strategy in the design and application of a commercial estate project is still very hard and complicated.
使用垂直于像平面的平面光为参考光，降低了数字全息显微术中相位补偿和解包的难度和复杂性。
Since a normal incidence plane wave is used as the reference wave, the difficulty and complexity of phase aberration and phase unwrapping of DHM are remarkably decreased.
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