Ignacio Mas of the Gates Foundation points out that ensuring secure text-message transactions will often require an agreement with a mobile operator, which controls access to the phone's SIM card.
盖茨基金会的IgnacioMas指出，为了确保短信交易的安全，通常要同控制手机SIM卡访问的移动运营商签署协议。
For Indonesians living in North America, it is often cheaper to buy an Indonesian SIM card and roam with it than it is to sign up for a local plan.
对生活在北美的印度尼西亚人来说，在国内买的手机SIM卡就算用了漫游，通常也比在北美参加当地的套餐活动要便宜得多。
Sim? ilarly, an increase in case depth, particularly uneven case depth in case hardening steels, increases warpage on quenching.
与此类似，渗碳层厚度越大，特别是对于渗碳层厚度不一的渗碳用钢，淬火时更易产生翘曲。
Sim? ilarly, an increase in case depth, particularly uneven case depth in case hardening steels, increases warpage on quenching.
与此类似，渗碳层厚度越大，特别是对于渗碳层厚度不一的渗碳用钢，淬火时更易产生翘曲。
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