MMB is defined as the lesser of two amounts calculated by the following methods: The member's benefits accrued and held under the ORSO scheme during the course of employment, i.e. benefits derived from employee’s contributions, plus the benefits derived from employer’s contributions under the vesting scale; or

The goal of this blog post is to present the maximum material boundary (MMB) concept in GD&T applications. The maximum material boundary concept is simply the use of a maximum material condition on a datum feature, as shown in Figure 1 (the annotation B (M)). Its major use is to allow easier assembly conditions on a part.

如經轉移後既有利益尚有餘額，僱員可按計劃的管限規則提取，而最低強積金利益則必須符合強積金法例列明的要求方可提取。 獲強積金豁免的職業退休註冊計劃的現有成員（即在2000年12月1日或之前參加職業退休計劃的僱員），不會受利益的保存、可調動性及提取的規定管限。 若現有成員被合理解僱，受託人亦不能沒收他們的最低強積金利益。

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2009年7月30日 · The MMB modifier signifies that the given GD&T callout is to be measured relative to a “datum reference frame” which consists of the given datum simulated at its maximum material boundary. So essentially it signifies that a datum shift may be allowed.

The ASME Y14.5-2009 standard specifies how both the size and position or orientation tolerances of a datum feature are to be used in calculating the datum MMB or LMB. Refer to "ASME Y14.5-2009 Dimensioning and Tolerancing" section 4.11.6, "Determining Size of Datum Feature Simulators at MMB", and succeeding sections on LMB.

使用最大实体条件(mmb)和最小实体条件(lmb) asme y14.5-2009 标准详细说明了基准特征的尺寸、位置或方向公差如何应用于计算基准的 mmb 或 lmb。请参见“asme y14.5-2009 几何尺寸标注和公差测定”的第 4.11.6 条，即“确定基准特征仿真程序在 mmb 的大小”及相连的 lmb 部分。

2024年6月25日 · How do you know when to use the MMC and MMB modifiers? To answer this question, Jason reviews the example drawing, below, of a simple part that uses the MMB and MMC modifiers, explaining why these modifiers can only be applied to a feature of size.

2021年7月2日 · 最大实体边界MMB（Most Material Boundary）和最小实体边界LMB（Least. Material Boundary）是2009版标准新引入的两个概念，它们的符号与MMC及LMC的符号一致。 很多人认为没必要去区分MMB和MMC 及LMB和LMC的区别，只要理解MMC及LMC的概念就可以了。

2024年11月12日 · I am trying to evaluate this profile that includes an MMB modifier. I have calypso 2019 and 2022 so I don't currently have access to the Beta GD&T engine. I'm wondering if there is some sort of a formula that I can use to apply this MMB modifier.